I bought some feeders (guppies) that I quarantined in my 20 gallon tank. There were about 10 other guppies in there at the time I dropped in an additional 20 guppies. Here's the problem, I've noticed ich on several of the new guppies. I removed the sick looking guppies and turned the water tempeture up to 85. The remainder of the fish look fine but can I feed these guppies to my RBP's? Please advise!