S
Sarah
Guest
What type of fish are they? Just saying their names, and their genders really doesn't help me at all. Nemo might have become fatter due to over-eating, he might be bloated. Be careful, if this is the case, you might need to cut down on the amount they are fed. If Cleo had black all over her face, this could be caused by ammonia burns. When the ammonia level is above 3, which is caused to a dirty tank. You probably have lowered the ammonia, which is why the burns went away. But if you do not specify the sized tank they are in, the type of fish they are, and who they are with, you won't be able to get anymore information than that.