Hi all Friend of mine called me moments ago asking for advice for his sick adult angel. He told me that fish have developed some sort of red rush starting from back fin and around its mouth and is spreading slowly around his body. Its looks like skinless fish on the area where the rush is. I will try to upload a picture once he manages to take one. Does anyone has any clue what this could be as i dont have much experience with angels. By the way 3 months ago he brought fish that later developed hole in the head but only that new arival was affected rest of his fish did not develop any symptoms.