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of corse theres fins on the side of a fish :)
They use their fins to glide through the water and they use their tail to move them side to side
It doesn't need fins to move forwards, but fins are used to control rolling from side to side
It swims. It uses its fins to propel it forward and it wiggles side to side to move through the water easily.
Fish move by swimming. They move their fins back and forth to swim. Some fishes have a swim bladder which is an organ that help bony fish stay in different depth.
Stabilising fins prevent a side to side rolling motion.
my pleco has damaged its side fins will they grow back
The fins act as stabilizer's. When the snake would make "S" movements in the water it was hard for it not to flip over at some point. So, it has developed fins on its back to works as a stabilizers which help to keep it right-side-up.
Dorsal fin, Flukes on the tail, and Pectoral fins on each side
If it has the holes already just put the fins in and screw them in from the other side.
The pectoral fins(located on each side) helps steer a fish during movement.
technacly they do because the have to have some way to get around in the water but they cant swim like and eel so yes they do.