Well maybe not all... the wrasse went back to the lfs because he was too aggressive. I had origianlly brought home a bi-colour angel that got a desease and died within 2 days. I waited 1 1/2 weeks than bought a pair of clowns. The 6 line wrasse harrassed and hurt one and he got an eye infection and died. I decided to take back the wrasse, but the other clown than died the next day of no apparent reason. He was swimming, eating and seemed healthy. Water prams were checked daily and were all good, I even took the water into my LFS to let him check them. So now I have no fish, but an electric blue crab, an emerald crab, a red legged crab, 2 pepermint shrimp a cleaner shrimp and 3 astrael snails. Should I leave the tank for 4-5 weeks and hope whatever desease is in the tank dies off, or should I be treating the tank with something. I really need some help.