well it depends on what kinda fish it is. maybe its natural or it could be its dying. look up the fish that u have on the internet and see. i hope its not anything bad.
I just got a fish from my teacher and i brought it home today. The fish is hiding inside the log toy......but its layin on its side but still breathing. Is it just scared? Will i start swimming when it gets used to its new environment and once we get the rest of the other fish thats it is comfortable with? Im kind of worried.