This can be caused by "fin nipping" between other fish or fin rot, which is caused by keeping fish in poor conditions.
all fish have fins
A perch fish has one pair of pelvic fins, totaling two pelvic fins. These fins are located on the underside of the fish, behind the pectoral fins. Pelvic fins play a role in stabilizing the fish as it swims.
of corse theres fins on the side of a fish :)
if its skin,eyes,and fins are not messed up.
The flaps on a fish are called fins, which help the fish to maintain balance, steer, and move through water. There are different types of fins on a fish, such as dorsal fins, pectoral fins, pelvic fins, anal fins, and caudal fins.
yes, jawless fish have no paired fins
fins!
fish
Most. There are very few fish that have no scales and all fish have fins.
Whitebait is a type of fish so it would have fins.
Fish that are active, with fins up, and swimming around. Fish that appear lethargic, have their fins clamped, or they are gasping for air is a sign of ill health that may be caused by bad water quality
Fish that do not have fins and scales include lampreys and hagfish.