Species profile
Congo Tetra
Phenacogrammus interruptusCongo Tetra (Phenacogrammus interruptus) is a schooling community species for a cycled 40+ gallon freshwater aquarium. Plan for about 3.5 inches as an adult, 75-82°F water, pH 6-7.5, and beginner-friendly care. Keep a group of at least 6; larger groups often behave more naturally when the tank has room.
FlashyBeginner-friendly care
40 galMinimum tank
3.5 inAdult size
6Schooling minimum
75-82°FTemperature
Water Range
- pH
- 6-7.5
- GH
- 3-15 dGH
- KH
- 1-8 dKH
Behavior
- Temperament
- Peaceful
- Fin nipping
- 0/5
- Territory
- 0/5
Diet and Care
- Diet
- omnivore
- Diet difficulty
- 1/5
- Care difficulty
- 1/5
Planning Notes
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These matches are starting points with overlapping water ranges and lower behavior risk. Always check the full stocking plan, tank size, and group counts before buying.
Run Congo Tetra through the checker with your tank size, cycle status, water, group count, and tankmates before buying.
Check my tankCompare this speciesPut Congo Tetra beside another profile to compare water range, size, diet, schooling needs, and behavior.
Open comparisonWill plants work?Match Congo Tetra against aquarium plants for nibbling, uprooting, cover, flow, and water-range flags.
Open plant matchAsk about my setupAsk Advisor how Congo Tetra fits with your current tank, recent logs, plants, and livestock.
Ask AdvisorView native rangeOpen the origins map to see reviewed native-range coordinates and regional context for Congo Tetra.
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