I have an ice blue red top zebra that has not eaten for two days. My water parimeters are ammonia 0, nitrite 0, PH 8.1 and nitrate about 20. I did a 50% water change yesterday. today I bought CLOUT and am currently treating it. He also seems to be breathing hard and sometimes hangs around the surface just below the filter, right where the filter spits the water back.I feed him spirulina flakes, and an a once every two weeks a little brime shrimp. I have him in a 45 gallon tank with 5 other big Mbuna and 5 small Mbuna. I don't know what els to treat if CLOUT don't work. Or how long to treat him with CLOUT. :?