I think it depends on the species. I have had two small red-eared sliders and two rather large gold-fish (they look like koi) in the same tank together. You must make sure that the fish have enough room to swim comfortably and that the water is not too deep for the turtles. It worked for me but the turtles refused to go in the water because they were afraid of the fish.
it is the same as fish tanks
I would not recommend keeping them together. Turtle harvest many types of bacteria that your fish are not used to. Your fish would probably become ill and die trying to fight the bacteria. Also, your turtle (depending on size) could easily kill a fish, whether on purpose or unintentional. I would suggest separate tanks. Good luck
The same as in the ocean
no you cant
fish have gils turtles have scales fish have fins turtles have shells well you'll get it
Fish tanks were not 'discovered' they were invented.
most if not all aquatic turtles will eat fish that are dead, but only some will chase and eat live fish. i have a painted turtle that loves to eat live guppies in the same tank as a map turtle that will only eat dead fish.
yes,
yes it is
Yes, turtles are known to eat fish, so it is possible that a turtle could eat your fish if they are in the same environment.
tutles and fish should NEVER be kept together
i smell cheese