Red-tail Dwarf Puffer
Tetraodontidae sp.
The Red-tail Dwarf Puffer (Tetraodontidae sp.) is an aggressive fish that's best left to experienced keepers. Give it a tank of at least 65 litres (17 US gallons), water held at 72-82°F, and a pH of 7-8.
Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Asia / South America
- East & Southeast Asia
- South America
Regional colours match the stocking calculator's origin map.
Red-tail Dwarf Puffer Tank Setup
Give them at least 65 litres (17 US gallons) - many puffers are messy and can deliver a real bite. Keep the water at 72-82°F with a pH around 7-8; a species-only tank is often the safest choice.
What Do Red-tail Dwarf Puffers Eat?
They're meat-eaters, so feed good-quality frozen or gel foods rather than relying on generic flake. Go easy on portions - leftover protein fouls the water faster than plant foods do.
Red-tail Dwarf Puffer Tank Mates
May nip fins; avoid with long-finned or slow tankmates. Predatory; may eat small fish or inverts. The Red-tail Dwarf Puffer is aggressive, which is the first thing to weigh up when you choose tank mates. It's a known fin-nipper, so avoid bettas, guppies, and other slow, long-finned fish. It's predatory, so anything small enough to fit in its mouth will be treated as food rather than a companion. Before you buy, run your full stocking list through our stocking calculator. It weighs temperament, adult size, and water needs together, which a single species page can't do on its own.
Are Red-tail Dwarf Puffers Good for Beginners?
Not a sensible first purchase. Get the tank cycled, keep easier fish stable for a year, then revisit if you still want the extra work this species demands.
Red-tail Dwarf Puffer - frequently asked questions
What size tank do Red-tail Dwarf Puffers need?
Red-tail Dwarf Puffers need a tank of at least 65 litres (17 US gallons). A bigger tank is always easier to keep stable, and gives them more room to settle in and behave naturally.
What water parameters do Red-tail Dwarf Puffers need?
Keep them at 72-82°F with a pH of 7-8, steady rather than chased to an exact figure. In a cycled tank, ammonia and nitrite should both read 0 ppm, with nitrate kept low through regular water changes.
What do Red-tail Dwarf Puffers eat?
Red-tail Dwarf Puffers are meat-eaters. Feed good-quality frozen or gel foods rather than relying on generic flake, and don't overfeed. Feed small amounts once or twice a day, and remove anything they don't eat.
Are Red-tail Dwarf Puffers good for beginners?
Red-tail Dwarf Puffers are not a beginner species. They need precise conditions and consistent maintenance, so build experience with hardier fish before keeping them.
Common mistakes with Red-tail Dwarf Puffers
- Mixing with long-finned fish - Red-tail Dwarf Puffers will nip at bettas, angelfish, and other fish with flowing fins, causing stress and infection risk.
Building a community? Run the full list through the stocking calculator before you add anything else.
Great tank mates
Chosen from temperament, overlapping temperature/pH bands, plausible minimum tank footprints, and size versus yours in App-aquatic data. Hobby nuance always wins - verify stocking and temperament before purchasing.
Fish to avoid mixing with Red-tail Dwarf Puffers
These well-known species are commonly sold alongside this fish but are not recommended tank mates - verify before purchasing.
- OscarPredator - Oscar will eat or injure smaller tank mates
- Neon TetraIncompatible temperament or care requirements
- Pygmy CoryIncompatible temperament or care requirements
