The glass bloodfin tetra (Prionobrama filigera), is a species of Characid fish native to the Amazon River basin of South America.

In the wild this fish eats mainly aquatic insect larvae and crustaceans.

A well planted aquarium with a volume of 15 US gallons (57 L) would make an ideal home for this species.

Prionobrama filigera will breed successfully in harder and more alkaline water than most tetra species.

A pH of 7.3 and 10 degrees of hardness is suitable, but not the much harder water the adults can live in.