Mtvrdik10
New Member
Hey guys, I don't know if this is a huge problem or not. But at the top of the tank (the top of the water level) I noticed there is some foam in the corner. What would cause that? I do my 25% water changes weekly. The water is clear. All the fish are fine, with the exception of one fish that died today. But the other 8 fish are fine, and not acting as if they are sick. Any ideas if this foam maybe is related to the fish dying? If not how does this foam form??