Originally Posted by
Noah's Nemo
http:///forum/post/3252079
Simple answer,if they make you happy, then they are happy
+1
If the fish are fighting, or sick we are not happy with them, we are worried. So when the critters are doing well, we are happy…so that means they are happy.
My fish do fish stuff, they pick at the rock and swim around and through them…chase each other into their perspective territory, everyone has their place. Nothing is sick, or fighting…all is well, I think that is about as happy as a fish can get..
They do seem to hate it if I put my hand in the tank or when I do the water changes. So I know they can be unhappy and hide. If they get sick, the other fish will eat them even before they are totally dead and if they are picked on they hide. So if they can be unhappy and afraid, they can be happy and feel secure and at home.