Fishician®Diet
Omnivore – flake, pellets, frozen brine shrimp
Aquarium species profile
Penguin Tetra
Thayeria boehlkei · South America (Rio Araguaia, Peru)
Minimum tank20 gal
Adult size3"
Care levelEasy
TemperamentPeaceful
Temperature72–82°F
pH range5.8–7.5
Compatible tank mates
Other medium tetras, Corydoras, peaceful cichlids, barbs
Tank mates to avoid
Very large predatory fish, aggressive cichlids
Care notes
Named for the distinctive black stripe running from mid-body down into the lower caudal fin lobe and the upward-angled resting position that resembles a penguin. Slightly larger tetra — great for community tanks. Schools of 6+.
Check the whole aquarium. Tank size alone does not establish compatibility. Confirm adult size, water overlap, social grouping, territory, diet, and the individual animals before stocking.