Well I'm not sure but the fish would probably be less active because the circulation wouldn't be as good in an open circulatory system so it wouldn't be able to retrieve as much oxygen for its energy level and it would need to slow down.
sharks and more
eating other fishs
it really depends on what fish your talking about fishs eggs can produce anywhere from a couple of days to a few weeks are you asking about a certain fish or fish as a general?
They blow air bubbles which may mean a sign of lack of air or they may be pregnant and are making a nest for the eggs.
Depends, If the hook goes down the throat into the belly the fish is as good as dead. If the hook is in the hard tissues around the opening of the mouth there is a very good chance he will shake it free.
fishs eddy
I don't think so. I know the fish may change it's own color. And that there is color-enhanseing food.
NO
deers or fishs
The Indian & Pacific Oceans .
sharks and more
bass, bream,
chalk goby
Gills
His fish are named Brock and Swimmy
what do fish eat
Increases the fish's volume by filling the swim bladder with oxygen.