Pelvic fins

Pairs fins located in front of the anal.

Pelvic fins are a pair of fins located on the back of the fish, on the belly, just under the side line. They are placed on each side of the reproductive organ and are often smaller than the dorsal and pectoral fins.

Pelvic fins are mainly used for stabilization and propulsion. They can be used to maintain the balance and the position of the fish when it is motionless, as well as to make turns and direction changes when it swims.

Certain species of fish also use their pelvic fins to rest on the bottom of the aquarium or to hide in rocks and crevices.

Pelvic fins are also important for reproduction. In some fish, males have modified pelvic fins called "Gonadic fins" which are used to fertilize the female eggs.

It is important to take care of the pelvic fins of your fish by keeping them clean and healthy. If pelvic fins are damaged or infected, this can affect the capacity of the fish to swim and to move normally. If you notice that the pelvic fins of your fish are damaged or finds it difficult to swim, it is recommended to consult a veterinarian for fish or a professional from the aquarophilia.

In summary, pelvic fins are a pair of fins located at the back of the fish that are used for stabilization, propulsion and reproduction. They are important for the well-being and health of your fish, so it is important to keep them in good condition.