Buyer question
How big do Tetra freshwater fish get?
Our Animal Library lists the Tetra freshwater fish at 1–2 in (neons) (adult size).
Source: the Tetra freshwater fish page in the Everybarn Animal Library. Tetra freshwater fish in the Animal Library
The detail
Tetras are small schooling fish, mostly from South America and Africa, including the neon and cardinal tetras. A group moving together is one of the most attractive sights in a planted tank, and most are peaceful community fish.
- Housing
- 20+ gal, schools of 6+
- Tank size
- 2 out of 5 (Small to medium)
What to weigh
Tetras must be kept in groups to feel secure. Some, like neons, are sensitive in newly set-up tanks.