Fin rot, also known as fin melt, is a bacterial or fungal infection in which the fins and tail of a fish begin to deteriorate ...

A rounded tail, like that of the angelfish, enables quick bursts of speed to escape predators. Fins: Help a fish move. The top fins are called dorsal fins. If there are two dorsal fins ...

DESCRIPTION: Both fish are minnows with slender, silver bodies and forked tail fins. The headwater chub is dark gray with silvery sides. The roundtail chub is olive gray to silver with a ...