If the fish lays at the bottom, it could mean a few things. It could be sleeping, hiding, or it could be injured/dying. You should worry if it is laying on its side or breathing strangely. If it seems healthy, the fish could just have a problem with its swim bladder, the organ that helps them go up and down in the tank. If it is a catfish and is missing a barbel, that can also mess up their swimming.
no its dead.........
It most likely means that he/she is sick because that is what happened to my betta fish. make sure you don't overfeed your betta fish because it can lead to constipation and that will cause trouble for the betta fish
If your fishes dorsoul(back fin) is down it usually means that your fish is sick. Most fish can live up to 3 months when sick. But some even longer. It all basically depends on what type of illness it has. In some cases it could be deppresion.
It's probably sleeping and if it still doesn't move it is dead!!:(
Probably the Whale Shark - since it's the biggest fish in the ocean !
Fish
turtle
depends on the fish.
It might be sleeping, or it has a disease(don't know which kind though, sorry). Sounds like it is on it's way out. Do frequent water changes and see if the fish recovers, but make sure the water is the same temp as the tank water! You don't want to stress a dying fish!
Your fish could be bloated? Try feed it a pea. take the skin off and maybe cut it p to his mouth size. good luck!
It lays eggs
fish