Species feeding guide

Live food for tetras

Tetras span the hardest feeding problem in the hobby — neon-sized fry that hatch almost microscopic — and one of the prettiest payoffs: adults in full colour on live food. The ladder is the same, you just start at the very bottom rung.

Neon tetras schooling in a planted aquarium

Photo: Warrieboy, Wikimedia Commons, CC BY-SA 4.0

The feeding plan

Stage	Feed this	Why it works
Tetra fry, first days	Vinegar eels	Among the few cultured foods small enough, and they swim for hours where tiny fry hunt
Fry, week 1–2	Banana worms, then microworms	Step up as fry grow; microworms become the productive staple
Juveniles	Baby daphnia / moina	First crustacean food — growth and early colour
Adults (neons, cardinals, embers…)	Daphnia & moina, 2–3× a week	Small daphnia suits small mouths; live feeding is famous for intensifying tetra colour and spawning behaviour

Practical tips

For adults choose moina and young daphnia — a big Daphnia magna is a mouthful for a neon.
Breeders: condition tetras on daphnia for 1–2 weeks before a spawning attempt, and have a vinegar eel tub climbing before eggs hatch.
Feed fry in a dim, shallow tank at first — tiny fry find swimming eels far more easily.

Watch out: Do not start tetra fry on microworms if they are neon-tiny — many cannot take them yet and will starve beside plenty. Start with vinegar eels and step up only when you see full bellies.

Common questions

What do neon tetra fry eat?

Vinegar eels (and infusoria) for the first days, then banana worms and microworms, then baby daphnia/moina. Tetra fry hatch extremely small, so the first rung matters most.

Is daphnia good for adult tetras?

Yes — especially moina and young daphnia sized for small mouths, 2–3 times a week. Keepers consistently see better colour and spawning readiness on live food.