This is my second post today... I have a 3.5 tank with 1 male betta fish, Reggie, 3 black racer nerite snails and 2 live plants. My Betta hasn't ever been really that healthy for long. It seems that every month or so I have to treat him for something. Usually his fins start to fray and his eyes get REALLY clouded. And he has resently stayed under the castle in his tank, he only comes out to breath. Any idea what this is? How to treat it? Why he might be getting sick? I don't know my water levels at the moment, I'm about to go get a liquid test kit but I wanna make sure that I get alll the stuff I need while I'm out so I don't have to to go back. I've been using Herbtana to treat him. Should I use something else? Sorry for the bad pics. That was one of the only times he came out today. Also, my lighting is really poor in my tank. Any suggestions on what I can do to fix that?