I don't understand it... I woke up this morning to find my last goldfish and pleco covered in a white film looking substance. They both have been fine up until then with no signs of difficulty or difference in behavior. But this morning, both were lying on the bottom with a transulecent white layer all around their little bodies. This white layer was also found all around the bottom of the tank. I am sad now because I love my fish so very much and I cant replace them or get new ones quite yet. I want to prevent this from happening again so if anybody knows what it is and what caused it, that would be a great help to me. I heard from a different fish disease site that it was a baterial infection...dont know if thats true or not. Thank you