Hey all, I've been having a few problems with my fish this past week and was hoping someone could help out. I have 3 geophagus tapajos red heads and about 5 days ago one started rubbing on the sand and on my rocks and drift wood. It darts around and flashes alot, 3-4 times an hour. His color dulled up and never puts up his dorsal fin. Then 2 days ago I started seeing the other 2 acting the same way. Every once in a while they hang out at the top or by a filter intake. As im typing this the one that showed symtoms first is hiding in a cave and the other 2 are grazing around the gravel. Water parameters are 0-0-5 Ph-7.3 temp- 78