Aquarium Fish

Aquarium fish compared — adult size, tank requirements, temperament with tank mates, water conditions, diet and how hard each is to keep.

1 entry

Betta Fish (Siamese Fighting Fish)

Jewel-bright and surprisingly intelligent — the fish that watches you back.

Size
Small
Weight
0.1–0.2 oz (2–5 g)
Lifespan
3–7 years