A basic rule is never to buy a fish from a tank that is suspect or dirty. Buying from a tank with dead fish in is a definite no no. I would not even consider buying anything from a pet shop if they had dead fish in aquariums on display.
no - never buy a fish from a tank with a dead one in
separate them If they are in the same tank, you can't; you need to put the ones that eat the smaller ones in a different tank.
If the fish is dead it may sink. Otherwise a fish can go anywhere in the tank by using its swim bladder. If the fish seems to be struggling to get to the surface, the fishes swim bladder is damaged and the fish should be euthanased.
Dead or dying
Yes it can.
if you can live with the smell
They will turn brown if dead.
ummm your fish is dead....sorry.......
Smell the tank, if it smells like a dead fish, then a hermie is dead :(:(
Could be anywhere.
it depends what kind of fish they are, and maybe how long you leave the dead fish in the tank. meat-eating fish probably would, but others wouldnt...
if there is a black out and you do have a fish tank you should be fine an less you have a chinease fish or any fish that is in the red mark for fish