Betta

Siamese fighting fish, also known as Bettas, are Asian freshwater fish which have been bred in a variety of bright colours.

Snapshot

Maintenance

Bettas prefer water temperature of between 23-27°C, with tanks of at least 20L.

Sociability

Very territorial, males cannot generally be kept together; also aggressive towards smaller fish.

Ego

They're called "fighting fish" for a reason; they're happy to fight any other betta that crosses their path.

Greed

A healthy amount of food for a betta is what they can eat in two minutes; more than that, and there'll be stale food floating in the tank.

Celebrity doppelgänger

Katy Perry

Pimp my tank

Bettas like to have a rock or plant to call their own. They'll defend it against all-comers.

Popular names

Fury, Zeus, Vulcan

Health & Care

Bettas are highly territorial, and will often choose a plant or rock as their own area, so large tanks are necessary to avoid trespass confrontation if they’re to be homed with other fish. They’re happiest eating bloodworm, daphnia, and other small animals.

Key Facts

AVERAGE LIFESPAN
3 - 5 years
AVERAGE SIZE
6.5 cm long

Common Conditions

Buoyancy Problems

Fish can have various issues causing buoyancy problems, particular with some fancy goldfish breeds. Internal issues such as bacterial infections, constipation and gas can all cause it; bacterial infections can be cleared up with medication, and constipation can be cured with a high-fibre food such as peas. Veterinary intervention may be needed in severe cases.

Average vet fees: £5 - 150

Velvet

Velvet is a parasitic infection that manifests as a very fine dusting over the fish, and can spread to other fish in the tank very easily. Infected fish should be quarantined as soon as possible, and the tank should be treated as well, with over the counter medicine. It’s a difficult disease to get rid of and has a high mortality rate.

Average vet fees: £5 +

Tip for first-time owners

Bettas enjoy a well-decorated tank, and will quickly pick a favourite piece of furniture.

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