Well now I've woke up to find one of my two mollies floating all around the tank. I'm worried cause it looked like her fins were jagged and my silver dollars look that way to. None of them have been fighting at all that I"ve seen. Could it be fin rot? If so the book I have says that as long as there isn't white or gray around it , it isn't infected. I hope they are fine. It's strange though cause it seemed to have happened out of nowhere to all three of them yesterday. Is that contagious? I'm down to only my pleco, one mollie, three platys, a swordtail, two silvers and a cory. I still luckily have all four frogs and all my ghost shrimp. This is very sad....