My neighbors had a fish which got white bumps all over it, you need to go to a pet store, or maybe a vet? im not sure but have somone check it out, they had to put some kind of stuff in the water the help the fish and it didnt hurt the other fish, it prevented them from getting the bumps. I used to have fishies.. ahh i miss them... Onel was a big black puffy like fishwhich i named "Puff Daddy" , after the rapper that has now changed his name to "P diddy" anyways i also had an albino gold fish (the only different one in the tank! thats why i got him ) which was like a pink/white color so his name was Pinky from Pinky and the Brain (a cartoon) and then i had a cory cat sish which was a orangish color that i named Elmo. I REALLY want my fishies back.. and i actually dont mind cleaning the tank every once and a while. Elmo and Pinky had a baby once. Of course right befor we were going on vacation and we couldnt take care of it... it was so small we put it in a little glass with some rocks and a little plant and gave it to my neighr to watch along with the others. She put the glass on the vcr (to keep it warm hehe) but eventually it died sorry to blabber on i think fishies are so cool! But you should really try to find a pet store near you.. sounds like maybe one of the other fish may have attacked it though (after being out and everything maybe the other fish didnt recognize the fish and attacked it, because i know when you get a new fish your supposed to put the bag in the water with the fish in it befor you let it go in there for the other fish get used to it. good luck hope the fishie is ok