Friday, I noticed that Gramps looks... off. His eyes are protruding a lot farther then Comet's, he has some kind of white.. stuff near one eye, his head looks almost rusty, his color is all faded and his fins have splotched of different color. I know Gramps is a bit old, probably 2.5 - 3 years old. Right now, he's in a half gallon drum bowl because I'm waiting on a bigger tank to cycle. It doesn't have a heater, thermometer or filter (I know, I know.) but I try to leave a warm lamp on during the day for them. They get Top Fin betta pellets twice a day, about two or three pellets per meal. I usually do 50% water changes every other day, adding some aq. salt since I noticed something wrong, and water conditioner. I haven't tested the water. Does anyone have a clue as to what's going on?
ETA: I forgot to mention: His fins look a bit ragged, and his bum sinks when he stops swimming. Also, it might help to mention that despite all this he consistently makes bubble nests and flares quite a bit.