Hello, I have had the tank running for a couple of weeks now and my clown has been doing well. two days ago, he seems to have lost interest in eating. I bought some new life spectrum pellets, thinking he was sick of the Mysis, but he let them float by. today when I got home from work, I tried another pellet, he ate one, but that was all. at fist I was thinking there was a problem with the water but my tests were all ok. today I was doing a water change I looked at him and saw a white stringy thing that looked like it might have been poop, but I remember hearing that this might be a parasite. It fell off before I could get a pic, but I don't know if I should treat him with something? can I do it in my DT if he is the only fish there? and help in general, I am worried because he hasn't eaten anything but 1 pellet in 2 days.