I have a Black Volitan lion that I have had about a year. A couple of months ago I had a bad outbreak of ick and the Lion was pretty bad. I fixed the ich problem with a UV sterilizer but ever since the Lion has been slow to eat, he will only strike once at food and if he misses he will not eat it. Before he had a very heafty apetite for frozen Silversides and Krill. I have tried feeding live ghost shrimp as well but he still has not eaten in about two weeks. ph 8.3- alk. 4.5 dkh- cal. 400ppm- nitrates 0- nitrites 0- phos. 0- Ammona 0- SG 1.021. He has what I think is fin rot, redness in the tail fin. Other than keeping good water quality I don't know what to do. Can anybody help?