I just put a baby goldfish in my gold tank last night. She when apparently in very good health at the store. This morning, a bit after feeding, I noticed a white thing that looks like white cooked fish meat coming out of her gill cover. The gill cover appears to be stuck shut, and she is swimming a little awkwardly. Parasite? Food (she's only eaten one pellet)? Should I grab her and yank it out with tweezers? How much do I have to worry about my other golds getting this? ((( pics to come soon.