{"product_id":"freshwater-fish-uk-jardini-arowana-sale","title":"Australian Bonytongue (Scleropages leichardti) - UK","description":"\u003cp\u003eThe Australian Bonytongue, \u003cem\u003eScleropages leichardti\u003c\/em\u003e, is one of the most striking oddball predators available in the \u003cstrong\u003efreshwater fish UK\u003c\/strong\u003e hobby. Also known as the Spotted Bonytongue, Southern Saratoga, and Leichardti Arowana, this ancient surface hunter combines a long, armoured body, metallic bronze sheen, and bold spotting that makes it an \u003cstrong\u003eimpressive display fish for large tank\u003c\/strong\u003e systems. For keepers searching \u003cstrong\u003efresh water aquarium fish uk\u003c\/strong\u003e, \u003cstrong\u003efreshwater fish aquarium uk\u003c\/strong\u003e, or a specialist \u003cstrong\u003euk freshwater fish aquarium\u003c\/strong\u003e centrepiece, this species stands apart from more common community fish. It reaches a serious \u003cstrong\u003ejardini arowana size\u003c\/strong\u003e-class body length of 60-90cm, lives 15-20 years with proper care, and is best suited to advanced aquarists who understand the needs of \u003cstrong\u003elarge freshwater fish uk\u003c\/strong\u003e collections.\u003c\/p\u003e\u003cp\u003eAlthough many hobbyists search for terms like \u003cstrong\u003eAustralian arowana tank size\u003c\/strong\u003e, \u003cstrong\u003ejardini arowana tank size\u003c\/strong\u003e, and \u003cstrong\u003ejardini arowana tank setup\u003c\/strong\u003e, the key point is simple: this is a powerful, top-dwelling predator that needs room, secure covers, and stable water. See our detailed photos showing the long jawline, reflective scales, and elegant finnage of this \u003cstrong\u003estunning Australian predatory fish\u003c\/strong\u003e. If you want a rare talking point rather than a typical community species, the Australian Bonytongue offers prehistoric looks, intelligent feeding behaviour, and true monster-fish presence for the serious \u003cstrong\u003efreshwater fish uk for tank\u003c\/strong\u003e enthusiast.\u003c\/p\u003e\u003cdiv class=\"info-box\"\u003e\n\u003ch4\u003e🔹 Quick Facts\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eScientific Name:\u003c\/strong\u003e \u003cem\u003eScleropages leichardti\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCare Level:\u003c\/strong\u003e Advanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin Tank Size:\u003c\/strong\u003e 750 litres (165 gallons)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 24-28°C (75-82°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH Range:\u003c\/strong\u003e 6.0-7.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifespan:\u003c\/strong\u003e Up to 20 years\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperament:\u003c\/strong\u003e Aggressive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiet:\u003c\/strong\u003e Carnivore\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"species-profile\"\u003e\n\u003ch3\u003eClassification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder:\u003c\/strong\u003e Osteoglossiformes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e Osteoglossidae\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenus:\u003c\/strong\u003e Scleropages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eScleropages leichardti\u003c\/em\u003e is one of the ancient bonytongues, a lineage prized by aquarists for prehistoric body shape, surface-feeding behaviour, and strong visual presence. In the hobby it is often compared with the Jardini Arowana and Asian arowana types, but the Australian Bonytongue has its own spotted pattern, long profile, and specialist appeal among keepers of \u003cstrong\u003eexotic tropical fish UK\u003c\/strong\u003e oddballs.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"origin\"\u003eWhere Do Australian Bonytongue Come From? Natural Habitat Explained\u003c\/h2\u003e\u003cp\u003eThe Australian Bonytongue comes from river systems in Queensland, Australia, where it inhabits slow to moderately flowing freshwater channels, lagoons, backwaters, and floodplain habitats. Unlike many \u003cstrong\u003esmall river fish species\u003c\/strong\u003e that hide among roots and leaf litter, this fish is a surface-oriented ambush predator built to patrol open water near overhanging vegetation. In the wild, it occupies warm tropical and subtropical waters where insects, crustaceans, smaller fish, and other animal prey are available near the surface.\u003c\/p\u003e\u003cp\u003eFor aquarists browsing a \u003cstrong\u003euk freshwater fish guide\u003c\/strong\u003e or wondering \u003cstrong\u003ewhat are freshwater fish uk\u003c\/strong\u003e species compared with Australian oddballs, this fish is obviously not one of the \u003cstrong\u003efreshwater fish native to uk\u003c\/strong\u003e. It is not part of the \u003cstrong\u003efreshwater fish uk rivers\u003c\/strong\u003e, \u003cstrong\u003efreshwater lake fish uk\u003c\/strong\u003e, or \u003cstrong\u003efreshwater pond fish uk\u003c\/strong\u003e fauna, and it should never be confused with \u003cstrong\u003efresh water river fish uk\u003c\/strong\u003e species such as bream, gudgeon, or barbel. Questions like \u003cstrong\u003ehow many freshwater fish species are there in the uk\u003c\/strong\u003e, \u003cstrong\u003ecommon freshwater fish uk\u003c\/strong\u003e, or \u003cstrong\u003efreshwater fish names a-z\u003c\/strong\u003e usually refer to native and established fish, while this species belongs firmly in the specialist tropical aquarium category.\u003c\/p\u003e\u003cp\u003eIts natural waters are often tea-stained or slightly tinted, with submerged timber, fallen branches, and shaded margins. That matters in captivity. A bright bare tank can make this fish nervous, while a long aquarium with dimmer zones, dark background panels, and broken lines of sight helps it settle. Hobbyists sometimes compare it with \u003cstrong\u003efreshwater fish for small ponds uk\u003c\/strong\u003e or ask \u003cstrong\u003ehow big freshwater fish uk river\u003c\/strong\u003e species get, but the Australian Bonytongue is not a pond fish and is absolutely unsuitable for outdoor UK conditions.\u003c\/p\u003e\u003cp\u003eIn terms of conservation and responsible keeping, it is important to buy legally sourced stock and to understand local regulations on large predators. Searches such as \u003cstrong\u003einvasive fish species uk\u003c\/strong\u003e, \u003cstrong\u003ewhat fish are banned in uk\u003c\/strong\u003e, and \u003cstrong\u003enative freshwater fish for sale uk\u003c\/strong\u003e show how often buyers want clarity. This species belongs in large indoor aquaria only, under experienced care, with no release risk and no mixing with undersized fish.\u003c\/p\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003ch4\u003e💡 Expert Tip\u003c\/h4\u003e\n\u003cp\u003eMimicking the natural habitat of Australian river margins improves confidence and feeding response. Use a dark background, floating cover, and subdued lighting rather than a bright, exposed layout. Keep the surface calm enough for easy feeding, but maintain strong biological filtration underneath.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"tank-setup\"\u003eHow to Set Up the Perfect Tank for Australian Bonytongue\u003c\/h2\u003e\u003cp\u003eIf you are researching \u003cstrong\u003eAustralian arowana care guide\u003c\/strong\u003e details, tank setup is the make-or-break factor. This species gets huge, produces heavy waste, and can launch itself upward with surprising force. A juvenile may look manageable in a shop tank, but adult housing must be planned from day one.\u003c\/p\u003e\u003ch3\u003eTank Size Requirements\u003c\/h3\u003e\u003cp\u003eThe absolute minimum \u003cstrong\u003eAustralian arowana tank size\u003c\/strong\u003e is 750 litres, but a \u003cstrong\u003ejardini arowana tank size\u003c\/strong\u003e equivalent of around 1000 litres is far more realistic for long-term care. Aim for a tank with substantial length and width, not just height. A footprint that allows smooth turning is essential once the fish passes 45-50cm. This is why the \u003cstrong\u003ebest arowana for home aquarium\u003c\/strong\u003e question always depends on available space; if you cannot house a 60-90cm predator properly, this is not the right species.\u003c\/p\u003e\u003cp\u003eFor a serious \u003cstrong\u003ejardini arowana tank setup\u003c\/strong\u003e-style system adapted to this species, use a tightly fitted lid, weighted covers, and protected gaps around pipes and cables. Australian Bonytongue are powerful jumpers, especially when startled by sudden movement, bright lights, or aggressive tank mates.\u003c\/p\u003e\u003ch3\u003eWater Parameters\u003c\/h3\u003e\u003cp\u003eThe ideal \u003cstrong\u003ejardini arowana water parameters\u003c\/strong\u003e for this fish are 24-28°C, pH 6.0-7.5, and 3-14 dGH. The best target is around 26°C, pH 6.8, with stable rather than fluctuating chemistry. Buyers often search \u003cstrong\u003ejardini arowana temperature\u003c\/strong\u003e and \u003cstrong\u003ejardini arowana temperature range\u003c\/strong\u003e; for Australian Bonytongue, the same warm tropical bracket applies. If you need a shorthand reference, think of a stable, clean, slightly soft to moderately hard tropical setup. \u003cstrong\u003eScleropages jardinii water hardness\u003c\/strong\u003e searches are common, and the practical takeaway is that both Australian species handle moderate hardness better than many blackwater fish, but sudden swings should still be avoided.\u003c\/p\u003e\u003cdiv class=\"spec-grid\"\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"spec-value\"\u003e24-28°C\u003c\/div\u003e\n\u003cdiv class=\"spec-label\"\u003eTemperature\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"spec-value\"\u003e6.0-7.5\u003c\/div\u003e\n\u003cdiv class=\"spec-label\"\u003epH\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"spec-value\"\u003e3-14 dGH\u003c\/div\u003e\n\u003cdiv class=\"spec-label\"\u003eHardness\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-card\"\u003e\n\u003cdiv class=\"spec-value\"\u003e750-1000L+\u003c\/div\u003e\n\u003cdiv class=\"spec-label\"\u003eTank Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch3\u003eFiltration\u003c\/h3\u003e\u003cp\u003eUse oversized filtration with strong biological capacity. A large external canister pair, sump filtration, or a hybrid mechanical\/biological system works well. Turnover of 5-8 times tank volume per hour is a sensible target, but avoid creating a harsh surface torrent that interferes with feeding. Because this is a carnivore, dissolved organics can build quickly. Weekly water changes of 30-50% are normal in well-stocked monster tanks.\u003c\/p\u003e\u003cp\u003eWhen building a display around this fish, many keepers also browse other unusual species such as \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eElephant Nose Knifefish\u003c\/a\u003e or \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eElephantnose Fish\u003c\/a\u003e, but filtration must be chosen for the biggest and messiest inhabitant, not the most delicate one.\u003c\/p\u003e\u003ch3\u003eSubstrate\u003c\/h3\u003e\u003cp\u003eSubstrate is mostly aesthetic because this fish lives at the top, but a dark sand or smooth fine gravel base helps reduce reflected light and makes the fish feel more secure. Avoid sharp decor and jagged rock piles. If the fish startles, it can injure its jaw, scales, or fins on hard edges.\u003c\/p\u003e\u003ch3\u003ePlants \u0026amp; Decor\u003c\/h3\u003e\u003cp\u003eKeep decor open. Use large branches, smooth root structures, and peripheral planting rather than dense central hardscape. Floating plants or surface diffusers help calm the fish. If you are considering tank companions, open swimming space is more important than decorative clutter. Tiny schooling species like \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eStrawberry Rasbora\u003c\/a\u003e, \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eRhombo Barb\u003c\/a\u003e, or \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eFour-Spotted Copeina - Pyrrhulina Spilota -\u003c\/a\u003e are visually appealing but not suitable tank mates because they are simply too small.\u003c\/p\u003e\u003ch3\u003eLighting Requirements\u003c\/h3\u003e\u003cp\u003eModerate to dim lighting works best. Bright overhead lighting can make this species skittish and increase jumping risk. Use a dawn-dusk schedule if possible, and keep photoperiods around 8-10 hours. Our product image, \u003cem\u003efreshwater-fish-uk.webp\u003c\/em\u003e, is best understood as a guide to body shape and spotting under controlled aquarium lighting rather than a promise of identical colour in every tank.\u003c\/p\u003e\u003cdiv class=\"info-box\"\u003e\n\u003ch4\u003eQuick Setup Checklist\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTank volume of 750 litres minimum, 1000 litres recommended\u003c\/li\u003e\n\u003cli\u003eSecure lid with no jump gaps\u003c\/li\u003e\n\u003cli\u003eTemperature stable at 24-28°C\u003c\/li\u003e\n\u003cli\u003epH 6.0-7.5 with low fluctuation\u003c\/li\u003e\n\u003cli\u003eOversized biological filtration\u003c\/li\u003e\n\u003cli\u003eDark background and subdued lighting\u003c\/li\u003e\n\u003cli\u003eOpen swimming area with smooth decor\u003c\/li\u003e\n\u003cli\u003eWeekly large water changes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003ch4\u003e💡 Pro Tip\u003c\/h4\u003e\n\u003cp\u003eAlways cycle the aquarium for 4-6 weeks before adding a large predator. In monster tanks, immature filtration causes more trouble than slightly imperfect pH. Stable ammonia and nitrite at zero matter far more than chasing tiny number changes.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"feeding\"\u003eWhat Do Australian Bonytongue Eat? Complete Feeding Guide\u003c\/h2\u003e\u003cp\u003eThe Australian Bonytongue is a carnivore with a strong feeding response and a preference for animal-based foods taken from the surface or upper water column. In the wild, it takes insects, crustaceans, and fish. In captivity, the best \u003cstrong\u003ejardini arowana diet\u003c\/strong\u003e-style approach is variety rather than relying on one food item. This species does well on high-quality carnivore sticks, floating predator pellets, strips of fish or prawn, and occasional insect-based foods.\u003c\/p\u003e\u003ch3\u003eStaple Foods\u003c\/h3\u003e\u003cp\u003eA good staple diet includes floating carnivore pellets formulated for large predatory fish. These help provide balanced vitamins and minerals that single-ingredient foods cannot. If customers ask \u003cstrong\u003ewhat do small freshwater fish eat\u003c\/strong\u003e, the answer is very different from what this species needs; Australian Bonytongue are not micro-predators or flake feeders, and they should not be managed like ordinary community fish.\u003c\/p\u003e\u003cdiv class=\"food-recommendation\"\u003e\n\u003ca href=\"\/products\/freshwater-fish-uk\"\u003eBlyth’s Archerfish\u003c\/a\u003e — A useful comparison species for surface-feeding behaviour; keepers who enjoy target feeding often appreciate both species, though they require very different stocking plans.\u003c\/div\u003e\u003cdiv class=\"food-recommendation\"\u003e\n\u003ca href=\"\/products\/freshwater-fish-uk\"\u003eHybrid Blue Neon \/ Tiger Parrot Fish\u003c\/a\u003e — Not a food item, but a contrasting large display fish for aquarists comparing feeding intensity and temperament in bigger tropical systems.\u003c\/div\u003e\u003ch3\u003eSupplemental Foods\u003c\/h3\u003e\u003cp\u003eSupplement with river shrimp, mussel, earthworms from safe sources, mealworms, crickets, and pieces of white fish. Avoid making feeder fish a routine part of the diet. Feeder fish often introduce parasites and encourage nutritional imbalance. A varied menu supports growth, colour, and long-term organ health.\u003c\/p\u003e\u003ch3\u003eTreats \u0026amp; Special Foods\u003c\/h3\u003e\u003cp\u003eTreat foods can include prawns, insects, and occasional frozen lancefish or similar marine-origin items in moderation. Many buyers land on pages asking \u003cstrong\u003ehow much to feed freshwater fish\u003c\/strong\u003e, \u003cstrong\u003ecan you eat freshwater fish\u003c\/strong\u003e, \u003cstrong\u003eis freshwater fish safe to eat\u003c\/strong\u003e, or \u003cstrong\u003efreshwater fish to eat list\u003c\/strong\u003e. Those are human-food searches, not aquarium-care advice. For this species, the important point is controlled portions: feed what is consumed promptly, and do not turn every meal into a binge.\u003c\/p\u003e\u003ch3\u003eFeeding Frequency \u0026amp; Portion Control\u003c\/h3\u003e\u003cp\u003eJuveniles can be fed once or twice daily in modest portions. Adults usually do well with one substantial feeding per day or five to six feedings per week. Watch the body line. A healthy fish looks full-bodied but not swollen. Excess fat in large predators often comes from overuse of rich foods and oversized portions.\u003c\/p\u003e\u003ctable class=\"comparison-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTime\u003c\/th\u003e\n\u003cth\u003eFood\u003c\/th\u003e\n\u003cth\u003eAmount\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMorning\u003c\/td\u003e\n\u003ctd\u003eFloating carnivore pellets\u003c\/td\u003e\n\u003ctd\u003eSmall handful, eaten within 2-3 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvening\u003c\/td\u003e\n\u003ctd\u003ePrawn, insect mix, or fish strips\u003c\/td\u003e\n\u003ctd\u003e2-4 pieces depending on fish size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eSearches such as \u003cstrong\u003ewhat freshwater fish can you eat uk\u003c\/strong\u003e, \u003cstrong\u003ewhat uk freshwater fish can you eat\u003c\/strong\u003e, \u003cstrong\u003ewhat uk river fish can you eat\u003c\/strong\u003e, \u003cstrong\u003efreshwater fish uk to eat\u003c\/strong\u003e, \u003cstrong\u003efreshwater fish you can eat uk\u003c\/strong\u003e, \u003cstrong\u003ebest freshwater fish to eat uk\u003c\/strong\u003e, \u003cstrong\u003ebest uk freshwater fish to eat\u003c\/strong\u003e, \u003cstrong\u003ebest uk river fish to eat\u003c\/strong\u003e, \u003cstrong\u003ewhich freshwater fish can you eat uk\u003c\/strong\u003e, and \u003cstrong\u003ewhich uk freshwater fish are edible\u003c\/strong\u003e are common on Google, but they are unrelated to keeping Australian Bonytongue as ornamental fish. This is a display predator, not part of a \u003cstrong\u003ebritish fish to eat\u003c\/strong\u003e or \u003cstrong\u003efreshwater fish to eat list\u003c\/strong\u003e discussion.\u003c\/p\u003e\u003cdiv class=\"warning-box\"\u003e\n\u003ch4\u003e⚠️ Feeding Warning\u003c\/h4\u003e\n\u003cp\u003eOverfeeding causes ammonia spikes, fatty degeneration, and poor water quality. Avoid mammal meat, frequent live feeder fish, and large meals that leave the fish bloated. Carnivorous fish need clean water as much as they need protein.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"appearance\"\u003eAustralian Bonytongue Appearance: Colors, Patterns \u0026amp; Varieties\u003c\/h2\u003e\u003cp\u003eThe Australian Bonytongue has the classic arowana-style silhouette: elongated body, broad scales, an upturned mouth built for surface strikes, and a long anal fin that mirrors the dorsal line toward the tail. Adults reach 60-90cm, making them a true \u003cstrong\u003epredatory fish UK\u003c\/strong\u003e showcase species and one of the most memorable \u003cstrong\u003elarge predatory fish UK\u003c\/strong\u003e aquarium fish available to specialist keepers.\u003c\/p\u003e\u003cp\u003eColour is one of its biggest selling points. Most specimens show bronze, olive-brown, or chocolate tones overlaid with pale spots and scale edging. Depending on lighting, some fish display copper highlights and a subtle gold wash. Juveniles are often more contrasty, while adults become deeper and richer in tone. Some keepers searching for \u003cstrong\u003eblack freshwater fish uk\u003c\/strong\u003e or \u003cstrong\u003efreshwater fish uk green\u003c\/strong\u003e are really looking for dark-bodied oddballs; this species often satisfies that visual preference better than bright community fish.\u003c\/p\u003e\u003cp\u003eIt is not one of the typical \u003cstrong\u003efreshwater fish with red fins\u003c\/strong\u003e, and it should not be confused with \u003cstrong\u003ebritish freshwater fish with red fins\u003c\/strong\u003e or smaller river species. Instead, its appeal lies in armour-like scales, prehistoric proportions, and the alert eye-line of a surface predator. Our photos show the spotted flank pattern and metallic body sheen that make this a \u003cstrong\u003estunning Australian predatory fish\u003c\/strong\u003e in large aquaria.\u003c\/p\u003e\u003cp\u003eSexual dimorphism is subtle. Mature males may appear slightly slimmer and more elongated in profile, especially around the head and mouthbrooding area in related species, but reliable sexing is difficult without breeding behaviour. If you see odd searches such as \u003cstrong\u003efreshwater fish uk male\u003c\/strong\u003e, remember that most large predatory fish are not easy to sex visually when young.\u003c\/p\u003e\u003ch2 id=\"compatibility\"\u003eWhat Fish Can Live With Australian Bonytongue? Compatibility Guide\u003c\/h2\u003e\u003cp\u003eCompatibility is where many sales go wrong. Buyers often search \u003cstrong\u003ejardini arowana tank mates\u003c\/strong\u003e and \u003cstrong\u003eScleropages jardinii tank mates\u003c\/strong\u003e, and the same caution applies here: Australian Bonytongue are aggressive, territorial, and opportunistic predators. Anything small enough to swallow is food. Anything too pushy can trigger stress, fin damage, or jumping.\u003c\/p\u003e\u003ch3\u003eIdeal Tank Mates\u003c\/h3\u003e\u003cp\u003eThe best companions are large, robust fish that occupy different zones and can hold their own without constant harassment. Suitable options may include sizeable catfish, some large cichlids, and other sturdy oddballs in very large systems. If you enjoy unusual display fish, you may also compare this species with \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eBlyth’s Archerfish\u003c\/a\u003e for upper-level behaviour, or browse oddballs like \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eProtomyzon pachychilus\u003c\/a\u003e for separate specialist setups. However, not every unusual fish belongs in the same aquarium.\u003c\/p\u003e\u003cp\u003eIn monster tanks, some aquarists pair Australian Bonytongue with heavy-bodied cichlids such as the \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eHybrid Blue Neon \/ Tiger Parrot Fish\u003c\/a\u003e, but this requires space, observation, and backup plans. The fish must be too large to eat, not hyper-aggressive, and not a persistent fin-nipper.\u003c\/p\u003e\u003ch3\u003eSpecies to Avoid\u003c\/h3\u003e\u003cp\u003eAvoid all small fish, including rasboras, barbs, copeina, and similar species. That means fish such as \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eStrawberry Rasbora\u003c\/a\u003e, \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eRhombo Barb\u003c\/a\u003e, and \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eFour-Spotted Copeina - Pyrrhulina Spilota -\u003c\/a\u003e are not community companions here. Delicate slow fish are also poor choices, as are aggressive bruisers that ram or trap surface swimmers.\u003c\/p\u003e\u003cp\u003eQuestions like \u003cstrong\u003ewhat fish are native to england\u003c\/strong\u003e, \u003cstrong\u003ewhat fish are native to uk\u003c\/strong\u003e, \u003cstrong\u003ewhat freshwater fish live in the uk\u003c\/strong\u003e, \u003cstrong\u003ebarbel freshwater fish uk\u003c\/strong\u003e, \u003cstrong\u003ecommon bream freshwater fish uk\u003c\/strong\u003e, \u003cstrong\u003ebream freshwater fish uk\u003c\/strong\u003e, and \u003cstrong\u003egudgeon freshwater fish uk\u003c\/strong\u003e come up often in search, but UK native species are not appropriate tank mates for this tropical predator. Likewise, searches such as \u003cstrong\u003ecatch and keep fishing uk\u003c\/strong\u003e, \u003cstrong\u003ewhen does the uk river fishing season start\u003c\/strong\u003e, \u003cstrong\u003ewhen does the uk river fishing season end\u003c\/strong\u003e, \u003cstrong\u003ewhen is the uk river fishing season\u003c\/strong\u003e, and \u003cstrong\u003ewhen is uk river fishing season\u003c\/strong\u003e relate to angling law, not aquarium stocking.\u003c\/p\u003e\u003ch3\u003eCommunity Tank Stocking Examples\u003c\/h3\u003e\u003cp\u003eIn a 1000-1200 litre aquarium, one Australian Bonytongue might be kept with one or two large bottom-dwelling catfish and one or two similarly robust midwater fish, provided all are introduced carefully and monitored. In many cases, a single-specimen display is safer and more attractive. For aquarists asking \u003cstrong\u003ewhat are the best freshwater fish for beginners\u003c\/strong\u003e, this species is not on that list. It is an \u003cstrong\u003eAustralian arowana for experienced keepers\u003c\/strong\u003e, not a beginner community fish.\u003c\/p\u003e\u003ch3\u003eCompatibility with Invertebrates\u003c\/h3\u003e\u003cp\u003eShrimp, crayfish, and most snails are risky. Small invertebrates become prey, while larger clawed species can injure the fish. Keep the setup fish-focused and uncluttered.\u003c\/p\u003e\u003ctable class=\"comparison-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecies\u003c\/th\u003e\n\u003cth\u003eCompatible?\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/freshwater-fish-uk\"\u003eHybrid Blue Neon \/ Tiger Parrot Fish\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e⚠️ Caution\u003c\/td\u003e\n\u003ctd\u003ePossible in very large tanks if size-matched and monitored closely\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/freshwater-fish-uk\"\u003eElephant Nose Knifefish\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e⚠️ Caution\u003c\/td\u003e\n\u003ctd\u003eOnly with great care; different feeding style and stress sensitivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/freshwater-fish-uk\"\u003eStrawberry Rasbora\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e❌ Avoid\u003c\/td\u003e\n\u003ctd\u003eFar too small; likely to be eaten\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003ch4\u003e💡 Compatibility Tip\u003c\/h4\u003e\n\u003cp\u003eAlways quarantine new arrivals for 2-4 weeks and introduce them after a tank rearrangement if possible. Large predatory fish often react badly to sudden additions in an established territory.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"breeding\"\u003eHow to Breed Australian Bonytongue: Complete Breeding Guide\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAustralian arowana breeding\u003c\/strong\u003e is exceptionally difficult in home aquaria and is generally not considered realistic for most private keepers. This species is a mouthbrooder, but the combination of adult size, aggression, and required space means breeding attempts are usually limited to public aquaria, specialist facilities, or very large custom systems. So while hobbyists may search \u003cstrong\u003ejardini arowana fry for sale\u003c\/strong\u003e or try to compare Australian species, most captive-bred large arowana-type fish available in the trade come from specialist producers rather than ordinary home setups.\u003c\/p\u003e\u003ch3\u003eBreeding Setup\u003c\/h3\u003e\u003cp\u003eA breeding pair would require a very large aquarium or indoor pond-style system with excellent water quality, secure covers, and enough room for courtship without constant collision. Soft to moderately hard water, warm temperatures around the upper end of the normal range, and a calm environment are all important. Sexing adults is difficult, which makes pair formation one of the biggest challenges.\u003c\/p\u003e\u003ch3\u003eSpawning Behaviour\u003c\/h3\u003e\u003cp\u003eLike related bonytongues, courtship may involve circling, parallel swimming, and close body contact. Eggs are large, and the male typically takes them into the mouth for brooding. This is one reason searches such as \u003cstrong\u003efreshwater fish uk male\u003c\/strong\u003e sometimes appear in breeding discussions, even though they are not species-specific enough to be useful on their own.\u003c\/p\u003e\u003ch3\u003eEgg Care \u0026amp; Hatching\u003c\/h3\u003e\u003cp\u003eIn mouthbrooding species, direct egg handling is generally avoided unless there is a specialist reason to strip eggs artificially. Stress can cause the brooding parent to spit or consume eggs. Stable water and minimal disturbance are critical.\u003c\/p\u003e\u003ch3\u003eFry Care \u0026amp; Growth\u003c\/h3\u003e\u003cp\u003eIf fry are successfully raised, they need pristine water, secure rearing space, and appropriately sized live or frozen foods before moving onto prepared diets. The \u003cstrong\u003ejardini arowana growth rate\u003c\/strong\u003e comparison is useful here: Australian bonytongues grow steadily under heavy feeding and clean water, but rapid growth should never come at the expense of skeletal development or water quality.\u003c\/p\u003e\u003ch3\u003eCommon Breeding Challenges\u003c\/h3\u003e\u003cp\u003eThe main obstacles are sexing, pair compatibility, tank size, and aggression. This is not a species for casual experimentation. If your goal is to keep a healthy display fish rather than produce fry, focus on long-term husbandry instead.\u003c\/p\u003e\u003cdiv class=\"tip-box\"\u003e\n\u003ch4\u003eAdvanced Breeding Tip\u003c\/h4\u003e\n\u003cp\u003eFor institutions or specialist breeders attempting mouthbrooding species, visual barriers and oversized systems reduce pair stress far more effectively than repeated handling. Stable territory and minimal disturbance are more important than chasing tiny parameter changes.\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2 id=\"comparison\"\u003eAustralian Bonytongue vs Similar Species: Which Should You Choose?\u003c\/h2\u003e\u003cp\u003eLarge surface predators are often grouped together, but they do not all behave the same way. A common comparison is \u003cstrong\u003eAustralian arowana vs saratoga leichardti\u003c\/strong\u003e, though that phrase is often used loosely online. In practice, buyers are usually comparing the Australian Bonytongue with the Jardini Arowana, another Australian \u003cem\u003eScleropages\u003c\/em\u003e species. Both are dramatic fish, but pattern, temperament, and availability can differ.\u003c\/p\u003e\u003ctable class=\"comparison-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eAustralian Bonytongue\u003c\/th\u003e\n\u003cth\u003eJardini Arowana\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Size\u003c\/td\u003e\n\u003ctd\u003e60-90cm\u003c\/td\u003e\n\u003ctd\u003eUp to around 90cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCare Level\u003c\/td\u003e\n\u003ctd\u003eAdvanced\u003c\/td\u003e\n\u003ctd\u003eAdvanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature\u003c\/td\u003e\n\u003ctd\u003e24-28°C\u003c\/td\u003e\n\u003ctd\u003e24-30°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e£500.00\u003c\/td\u003e\n\u003ctd\u003eVaries by specimen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eCollectors wanting a spotted Australian oddball\u003c\/td\u003e\n\u003ctd\u003eKeepers seeking a classic jardini-style display predator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe Australian Bonytongue is ideal if you want a distinctive spotted fish with strong Australian provenance and a less commonly seen profile in the \u003cstrong\u003efreshwater fish UK\u003c\/strong\u003e market. It works especially well as an \u003cstrong\u003eAustralian arowana for species tank\u003c\/strong\u003e centrepiece or in a carefully planned monster aquarium. If you are searching for the \u003cstrong\u003ebest arowana species for UK\u003c\/strong\u003e homes, the answer depends on tank size, lid security, and your willingness to manage aggression.\u003c\/p\u003e\u003cp\u003eCompared with other oddballs sold in the same broad category, this fish is far more predatory than species like \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eElephantnose Fish\u003c\/a\u003e and far larger than fish such as \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eProtomyzon pachychilus\u003c\/a\u003e. It is also a stronger candidate for a true \u003cstrong\u003ejardini arowana for monster tank\u003c\/strong\u003e-style display than mixed community oddballs. If you want a prehistoric top-dweller that dominates the room, choose the Australian Bonytongue. If you want a peaceful oddity, choose something else.\u003c\/p\u003e\u003ch2 id=\"health\"\u003eCommon Health Problems in Australian Bonytongue \u0026amp; How to Prevent Them\u003c\/h2\u003e\u003cp\u003eA healthy Australian Bonytongue is alert, surface-oriented, evenly buoyant, and responsive at feeding time. The eyes should be clear, scales flat, fins intact, and body line smooth without pinching or bloating. Because this species is large and active, poor conditions show quickly in behaviour: refusal to feed, repeated crashing into the lid, clamped fins, or staying motionless in a corner are all warning signs.\u003c\/p\u003e\u003ch3\u003eSigns of a Healthy Fish\u003c\/h3\u003e\u003cp\u003eLook for steady cruising, good balance, and confident surface feeding. Colour should be clean and metallic rather than dull and greyed out. Minor variation between specimens is normal, especially in imported fish adjusting to captive conditions.\u003c\/p\u003e\u003ch3\u003eCommon Diseases \u0026amp; Symptoms\u003c\/h3\u003e\u003cp\u003eTypical issues include external damage from jumping, bacterial infections after abrasions, parasitic irritation, and stress-related appetite loss. Because this is a large predator, injuries from poor decor or unsuitable tank mates are more common than in small community fish. New arrivals may also show transport stress if not acclimated properly. Searches such as \u003cstrong\u003efreshwater fish mass\u003c\/strong\u003e, \u003cstrong\u003erarest uk freshwater fish\u003c\/strong\u003e, or \u003cstrong\u003efreshwater fish representative species\u003c\/strong\u003e are interesting from an educational angle, but for owners the practical concern is preventing trauma and maintaining water quality.\u003c\/p\u003e\u003ch3\u003eTreatment Options\u003c\/h3\u003e\u003cp\u003eFirst response should always be environmental: test water, increase aeration, and perform a substantial water change if needed. Quarantine is strongly recommended before using medication. Salt can help in some cases, but dose carefully around tank mates and filtration bacteria. Avoid random medication mixes. If the fish has damaged scales or jaw tissue from jumping, pristine water and low stress are often as important as any medicine.\u003c\/p\u003e\u003ch3\u003ePrevention Tips\u003c\/h3\u003e\u003cp\u003ePrevention starts with a secure lid, stable \u003cstrong\u003ejardini arowana water parameters\u003c\/strong\u003e-style water quality, and a varied diet. Keep nitrate under control through water changes, remove uneaten food promptly, and avoid sudden bright-light shocks. This species benefits from calm routines. If you keep other fish, quarantine every addition. That matters more than many hobbyists realise when buying \u003cstrong\u003efreshwater fish uk for sale\u003c\/strong\u003e online.\u003c\/p\u003e\u003ch3\u003eQuarantine Procedures\u003c\/h3\u003e\u003cp\u003eUse a separate heated and filtered holding tank for 2-4 weeks. Observe feeding response, breathing rate, and skin condition. Do not rush introductions into a display tank just because the fish looks active on day one.\u003c\/p\u003e\u003cdiv class=\"warning-box\"\u003e\n\u003ch4\u003e⚠️ Health Warning\u003c\/h4\u003e\n\u003cp\u003eNever use medications casually in a display monster tank without checking compatibility and dosage. Large fish can be sensitive to overdosing, and stressed predators may injure themselves further if handled repeatedly.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"info-box\"\u003e\n\u003ch4\u003eQuarantine Protocol\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUse a separate tank for 2-4 weeks\u003c\/li\u003e\n\u003cli\u003eMatch temperature to 24-28°C\u003c\/li\u003e\n\u003cli\u003eMonitor appetite, respiration, and skin condition daily\u003c\/li\u003e\n\u003cli\u003eTest ammonia and nitrite frequently\u003c\/li\u003e\n\u003cli\u003eKeep decor simple to prevent injury\u003c\/li\u003e\n\u003cli\u003eOnly move to display after stable feeding and no symptoms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch2 id=\"behavior\"\u003eUnderstanding Australian Bonytongue Behavior in the Aquarium\u003c\/h2\u003e\u003cp\u003eThis species is an intelligent, alert, top-level predator with a strong awareness of movement outside the tank. It often learns feeding routines and may track people across the room. That intelligence is part of the appeal. It is not a passive ornament; it is an active hunter with presence.\u003c\/p\u003e\u003cp\u003eMost individuals are solitary or loosely tolerant rather than social. They do not need groups, and crowding generally increases conflict. During acclimation, they may be skittish and prone to sudden dashes. Once settled, they become more deliberate and confident, especially in dimmer tanks with secure cover.\u003c\/p\u003e\u003cp\u003eNatural behaviour is encouraged by open surface area, floating cover, predictable feeding times, and minimal harassment from tank mates. If you are comparing \u003cstrong\u003ewhat freshwater fish live in the uk\u003c\/strong\u003e with tropical oddballs, this fish behaves nothing like native shoalers or bottom-feeding river fish. It is a specialised ambush predator built for the upper water column, and that is exactly how the aquarium should be designed.\u003c\/p\u003e\u003ch2 id=\"why-buy\"\u003eWhy Buy from Tropical Fish Co?\u003c\/h2\u003e\u003cp\u003eLarge predatory fish demand more than generic handling. Our Australian Bonytongue are selected for body shape, alert swimming behaviour, intact finnage, and clean scale condition, with special attention paid to jaw alignment and transport resilience. That matters with a species known for jumping and stress if packed poorly.\u003c\/p\u003e\u003cp\u003eBefore listing any \u003cstrong\u003efreshwater fish for sale uk\u003c\/strong\u003e specimen of this type, we monitor feeding response and general condition, and we hold fish long enough to assess stability after import or transfer. For customers searching \u003cstrong\u003efreshwater fish online uk\u003c\/strong\u003e, \u003cstrong\u003ecan you buy freshwater fish online\u003c\/strong\u003e, \u003cstrong\u003efresh water fish for sale uk\u003c\/strong\u003e, \u003cstrong\u003elive freshwater fish uk for sale\u003c\/strong\u003e, \u003cstrong\u003euk freshwater fish for sale\u003c\/strong\u003e, \u003cstrong\u003efreshwater fish uk buy\u003c\/strong\u003e, or \u003cstrong\u003efreshwater fish delivery uk\u003c\/strong\u003e, the key issue is not just availability but safe preparation for travel.\u003c\/p\u003e\u003cp\u003eEach fish is packed in insulated boxes with professional bagging, oxygen where appropriate, and seasonal heat packs in winter. We use tracked delivery methods and provide acclimation guidance so the fish can be introduced carefully to a mature system. Because this is not a beginner species, we strongly recommend discussing your setup first if you are unsure about tank size, filtration, or compatibility. That is especially relevant for buyers comparing \u003cstrong\u003efreshwater fish for sale uk cheap\u003c\/strong\u003e listings or bulk-style \u003cstrong\u003efreshwater fish uk wholesale\u003c\/strong\u003e offers; with large oddballs, husbandry quality matters more than bargain pricing.\u003c\/p\u003e\u003cp\u003eWe also help customers compare this fish against other unusual stock lines, whether they are browsing \u003cstrong\u003ebritish freshwater fish for sale\u003c\/strong\u003e, \u003cstrong\u003euk river fish for sale\u003c\/strong\u003e, or specialist tropical oddballs. Order your Australian Bonytongue today with confidence if you have the space, filtration, and experience this remarkable fish deserves.\u003c\/p\u003e\u003cdiv class=\"care-highlight\"\u003e\n\u003ch4\u003eWhy Choose Tropical Fish Co for Australian Bonytongue\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSelected for strong body shape, intact fins, and confident feeding response\u003c\/li\u003e\n\u003cli\u003ePacked specifically for large, jump-prone predatory fish with insulated transport methods\u003c\/li\u003e\n\u003cli\u003eClear guidance on tank size, acclimation, and compatibility before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch2\u003eYou Might Also Like\u003c\/h2\u003e\u003cp\u003eIf you are building a specialist oddball collection, compare this fish with the surface-hunting \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eBlyth’s Archerfish\u003c\/a\u003e for another dramatic upper-level predator. For a very different intelligent oddball, the \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eElephant Nose Knifefish\u003c\/a\u003e offers a fascinating sensory feeding style in suitable setups. If you enjoy bold display fish for large aquaria, the \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eHybrid Blue Neon \/ Tiger Parrot Fish\u003c\/a\u003e is another eye-catching option. Smaller species such as \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eRhombo Barb\u003c\/a\u003e and \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eStrawberry Rasbora\u003c\/a\u003e are better reserved for separate community tanks, while \u003ca href=\"\/products\/freshwater-fish-uk\"\u003eFour-Spotted Copeina - Pyrrhulina Spilota -\u003c\/a\u003e suits planted setups rather than predator displays.\u003c\/p\u003e","brand":"Tropical Fish Co","offers":[{"title":"5-7 cm","offer_id":57469592731983,"sku":"K265","price":87.99,"currency_code":"GBP","in_stock":false},{"title":"10 - 13 cm","offer_id":57470161584463,"sku":"K879","price":442.99,"currency_code":"GBP","in_stock":true},{"title":"13-15 cm","offer_id":57560779555151,"sku":"KB65","price":215.99,"currency_code":"GBP","in_stock":false},{"title":"20-25 cm","offer_id":57560779587919,"sku":"KB66","price":653.99,"currency_code":"GBP","in_stock":false},{"title":"15-20 cm","offer_id":57560779620687,"sku":"K880","price":438.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1007\/1408\/6735\/files\/freshwater-fish-uk-australian-bonytongue-hero-driftwood-kb65.webp?v=1775708520","url":"https:\/\/tropical-fish-co.myshopify.com\/products\/freshwater-fish-uk-jardini-arowana-sale","provider":"Tropical Fish Co","version":"1.0","type":"link"}