About 3 weeks ago I lost my wrasse to what i thought was just a regular sickness it was stuck under as rock and died the next day after i found it it couldnt swim and was gasping for air at the top. I didnt think anything of it becuase i hadnt added anything new besides some snails a few days prior. But now the same thing has happned to my clown its hiding in a corner and cant swim upwards. I did some reaserch and have started feeding it by hand. It started today when I couldnt find him when I fed the fish. When I started looking I found him and feared the worst that he was going to die but i believe since the wrasse was missing for a couple days it died of starvation so I am goimg to hand feed the clown but I dont know how to treat the clown any ideas?