Congo Tetra Care Guide
Phenacogrammus interruptus · Moderate care · 30 gallon minimum
A larger, iridescent rainbow-sheened tetra with flowing fins; needs swimming room and a group.
Check your stocking with the stocking calculator →
How big does a congo tetra get?
A congo tetra (Phenacogrammus interruptus) reaches about 3.0 inches as an adult. Plan tank size and tank mates around the adult size, not the small fish you buy at the store.
Tank size & setup
Give a congo tetra a minimum of 30 gallons, with water at 73–82°F and a pH of 6–7.5. Keep them in groups of at least 6 — they are shoaling fish and become stressed and washed-out alone. As a moderate-care, omnivore species, a stable, cycled tank with the right diet keeps them healthiest.
Good tank mates
Pair a congo tetra with peaceful species that share its temperature and pH range. Compatible options include:
- Neon Tetra — 1.5", 10g min
- Guppy — 2.0", 10g min
- Molly — 4.0", 20g min
- Platy — 2.5", 10g min
- Zebra Danio — 2.0", 10g min
About the congo tetra
The Congo tetra is a species of fish in the African tetra family, found in the central Congo River Basin in Africa. It is commonly kept in aquaria.
Recommended gear for congo tetras
As an Amazon Associate we earn from qualifying purchases.