You can't help a fish with swimming because if the fish is bending it means that it is about to die and not being able to swim is a nother sign of the fish about to die.
No they cant it is impossible
to help the fish swim and float
all fresh water fish
because they use there tail to swim, and they don't have a tail on the front so they cant swim backwards.
a fish can swim in the water for ever but a human cant
To help the fish to swim.
what help fish regulate how close they swim to the bottom
They swim in schools.Some have colors that help them blend in to their surroundings. Others change colors to match their surroundings. Some swim very fast to escape the danger. Some fish swim in very tight schools to confuse other fish. Some fish hide in the rocks and plants so the bigger fish cant get to them. Some fish can hide in poisonous anemonies and they are not affected by the poison but other fish are.
The have fins and gills.
no some swim upwards however they cant swim backwards but.. they do like to try. Whales have huge dongs.
no, they have a swim bladder but this is so the fish can stay afloat
they can be used as food