My Beta fish seems to be dying. He's just swimming on his side and slipping in and out of consiousness. He was fine this morning, ate all his food, and was happily swimming around. I'd say this one beta in particular is almost 3 years old. Anyway, I just walked in the door, and I noticed him barely moving and laying on his side. Upon a closer look, it seems like his face turned brown (it was once a dark red). The brownish color seemed to also spread across his body, and it's pretty evident that he is dying. Before I euthenize him (with clove oil and vodka) I was wondering if any one knew what could have possibly caused this problem. I've never this problem with my Beta's before. What could have happened??