Keeping Congo Tetras: A Shimmering African Schooler

Congo tetras are the aristocrats of the tetra world - large African tetras whose scales shimmer with iridescent blue, gold and orange, trailing soft, flowing fins. Peaceful and elegant, a school of them drifting through a softly lit, well-planted tank is a luminous sight. They ask for a roomy, mature tank and gentle tankmates, rewarding the keeper with understated brilliance.

Is it right for you?

Congo tetras suit a keeper with a roomy, mature planted tank who wants a large, shimmering, peaceful schooler. They are a touch more demanding than small tetras but not difficult.

System & Space

A larger, softly lit, well-planted tank with swimming room suits their size and active schooling; a dark substrate and gentle light bring out their shimmer.

Water & Temperature

They like warm, soft, slightly acidic water and stable, mature conditions; harsh bright light and hard water dull their color. Stability suits them.

Stocking & Feeding

Keep a school of six or more and feed varied flakes, pellets and frozen or live foods; good feeding deepens their iridescence. Avoid fin-nippers that damage their flowing fins.

Health & Care

Hardy in soft, stable, mature water; the main risks are fin-nipping tankmates, hard or unstable water, and too small a tank. Give them space and peace.

Harvest & Enjoying Them

Ornamental - the reward is a large, shimmering, elegant school that makes a luminous centerpiece in a planted aquascape.

Getting Started

Add a school of six or more to a mature, cycled, roomy, softly lit, warm soft-water tank with peaceful tankmates, and let them settle and shimmer.

Common Mistakes

Fin-nipping tankmates, too small a tank or school, and harsh light or hard water that dulls their color are the usual mistakes.

FAQ

Why do they look dull? Hard water and harsh light dull them - soft water, dark substrate and gentle light bring out the shimmer.

Peaceful? Yes - elegant and gentle, but keep fin-nippers away from their flowing fins.