I have one male dalmation molly and about 3 weeks ago I got him a girl dalmation molly. He got her pregnant and she then died. Last week I got 3 more female dalmation mollies and one of them was pregnant from the fish store. She then got a lot bigger and disappeared for a day. This morning I found her dead. I don't know what it is but I don't have any luck with pregnant dalmation mollies. Anyone have any takes on this?