Hi there. I'm new to the fish keeping thing. I have dalmation mollies, and 2 weeks ago my one female had a couple of fry. The fry are all in their own tank. 2 days ago I've noticed 2 died. Yesterday I saw that most of the fry have tiny black spots on them. Some are around the mouth, some on the fins. Is this fluke? If not, what is it and how can I treat it? I bought Dophin General Aid Special and added to the water after a 70% water change yesterday. But still no change on the fry.