I got a clownfish early last week and I had it in my sump (20 gallon with just a skimmer and no partitions). It stopped eating after Saturday last week and I saw white poop around 1-2 inches long. Put in a hospital tank(rather a tub) around 2 gallons with a air stone and heater day before and was told to treat with prazi pro which I did (0.5 ml for 2 gallons). I got metro as well yesterday and since it's not eating, created a concentrated bath of metro (10 gallon equivalent with some reef roids mixed) and let the fish sit in the bath for about 5 minutes. I thought he would not make it last night but he is still swimming around but still not eating. He also has been swimming at an angle of 45° since he stopped eating. I am doing 25% water changes every day in the hospital tank. Sg is 1.024, nitrates 2 ppm, ammonia and nitrite undetectable at this time. I tried feeding salt water multipack (each variety of cube), pellets, chlorella flakes and still does not eat anything. What else could be the problem? I can post a pic in a short while.