Ember tetra was created in 1987.
All "Tetras" are egg layers.
Black tetra was created in 1895.
Bucktooth tetra was created in 1844.
Gold tetra was created in 1909.
Tetra JSC was created in 1995.
Tetra Pak was created in 1951.
Congo tetra was created in 1899.
Tetra Tech was created in 1966.
Tetra Films was created in 1992.
Tetra Karcist was created in 2007-06.
Ember - company - was created in 2001.
Green neon tetra was created in 1963.