angel41
New Member
Hello, I'm new to this and of course I have a lot of questions. can someone tell me how can I tell if the fish has a disease, what are the signs?is it normal for a fish to stay in one place for a long time. I have a sailfin tang and it seems to be picking at the thermometer and stay there for a long time. I don't know if it is sick or what but it is eating fine and still swims around. Just curious. what should I do?