I got a pair of clowns from lfs on a sat. my roomate ignored all advice and pu them direct into the display tank housing 2 baby mollies, orange tail damsel, and the yellow tail pygmy angel. All the fish looked fine, they all swam fine, and the water qual is right on except high salinity because the water is evaporating faster then we can keep up. by tues even 1 clown was whitish and clamped fins, by wed morn fish was dead. the lfs said the water was fine, too bad about the fish and suggested a f/w dip or treamnt. we then immediately f/w dip and quantined the fish in a 10 gal. 1 wk later, tonight, the roomate again went against advide and put the clown back in. immediatly after ward he noticed white spots on the pygmy. there is no film but definite spots on tail, fins, and body. So we comenced the capture in which the fish became very stressed. in the transfer bowl the fish clamped his fins to the body and scrunded his tail down and was breathing very fast. we waited 10 mins then fw dip and put in the 10 gal. Will he be okay and what about the rest of the tank? i cant copper treat because i have several crabs, 2 snails, feather dusters and small things i dont want to kill and dont know if they will be affected by copper. Any advice would be appreciated.