Species profile
Penguin Tetra
Thayeria boehlkeiPenguin Tetra (Thayeria boehlkei) is a schooling community species for a cycled 20+ gallon freshwater aquarium. Plan for about 2.5 inches as an adult, 72-80°F water, pH 6-7.8, and beginner-friendly care. Keep a group of at least 6; larger groups often behave more naturally when the tank has room.
Community leaningBeginner-friendly care
20 galMinimum tank
2.5 inAdult size
6Schooling minimum
72-80°FTemperature
Water Range
- pH
- 6-7.8
- GH
- 2-15 dGH
- KH
- 1-10 dKH
Behavior
- Temperament
- Peaceful
- Fin nipping
- 0/5
- Territory
- 0/5
Diet and Care
- Diet
- omnivore
- Diet difficulty
- 1/5
- Care difficulty
- 1/5
People also bought
Fish that pair well with Penguin Tetra
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 Penguin Tetra through the checker with your tank size, cycle status, water, group count, and tankmates before buying.
Check my tankCompare this speciesPut Penguin Tetra beside another profile to compare water range, size, diet, schooling needs, and behavior.
Open comparisonWill plants work?Match Penguin Tetra against aquarium plants for nibbling, uprooting, cover, flow, and water-range flags.
Open plant matchAsk about my setupAsk Advisor how Penguin 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 Penguin Tetra.
Open origins mapAquarium guidesRead setup, cycling, stocking, and care guides before buying fish.
Browse blogsFrom keepers
Loading…