Care guide

Puffer fish care guide

Pea puffers are tiny, clever and completely full of attitude. They are also fin-nippers and predators, so they need a tank built around them.

Species-only tanks

Freshwater puffers nip fins and hunt anything slow. The safest setup by far is puffers alone.

  • One pea puffer per 20 litres, minimum 40 litres for a small group
  • Keep in a group of 5–6 to spread aggression, with more females than males
  • Never house with bettas, guppies, shrimp or any long-finned fish

Diet & teeth

Puffers will not touch dry pellets. Their teeth grow continuously and must be worn down on hard-shelled food.

  • Feed frozen bloodworm, brine shrimp and daphnia
  • Offer live ramshorn or bladder snails regularly — this keeps teeth trimmed
  • Feed once daily, small amounts

Tank setup

A heavily planted tank with sight breaks reduces squabbling and lets shy puffers hide.

  • Dense planting, moss and driftwood
  • Gentle flow — puffers are poor swimmers
  • Temperature 24–27°C, pH 7.0–7.8
  • Tight lid; puffers are curious

Before you buy

Puffers need a mature, fully cycled tank and a snail supply. Set both up before your fish arrives.

  • Start a snail culture a few weeks ahead
  • Cycle the tank fully — puffers are sensitive to ammonia
  • Quarantine new arrivals if you already keep a group

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