Species Profile
Penguin Tetra
Thayeria boehlkei
Tetraspeaceful
Adult size
3″
Minimum tank
20 gal
Temperature
72–82°F
pH
5.8–7.5
Schooling
Group of 6+
Water level
mid
Diet
Flake, pellets, frozen
Notes
Swims with a head-up tilt, hence the name. Hardy and active.
Photo: Andrew Gray / Wikimedia Commons · Source · CC-BY-SA-3.0