ok heres the story... set the tank up, ran for few weeks (2-3) i bought 4 damsils. 3-4 days later my wife buys 2 clown fish. 1 clown gets ick and dies less than 24 hours in the tank and also a damsil. next day we get a new clown and 4 more damsils (7 damsils now). then we get a sweetlips (bad idea). he goes good for a few days and then i add a yellow tang, cleaner shrimp, and scooter blenny. the sweetlips gets ick and dies and also does another damsil(now down to 6). yesterday i bought a ringed cleaner shrimp. i noticed ick again and then this morning another damsil dies... what could be doing this? every time i get a fish, another dies!