My boyfriend and I bought our first fish ever, which happened to be a betta, about 6 months ago, and we named him Glubby. I'll admit that to this very day we're still fish novices, but we tried our best to make him as comfortable as possible because we got really attached to him. When we first got him he was just in a bowl, and then we bought a ten gallon tank with a filter and decorated it just for him. He was in there by himself for awhile, but we thought he looked lonely so we went out and bought 4 rasboras and 4 glolight tetras. We reasearched what fish would go well with him and he hasnt attacked them and they all seem fine. We've had them all together for about a week now.
This morning I woke up and now Glubby has this white stuff all around his mouth, and on the sides of his fins. He still moves around but he wouldn't eat this morning and usually he comes swimming over to me whenever he sees the food, all excited. He was just staying at the top of the tank, looking lifeless. He moves if you try to get him to, but not much else. It also seems like he can only use one of his fins, but the other one has white stuff on it like I said.
Since we thought maybe he was sick we put him in the original bowl we bought for him so the other fish didn't get sick.
What's wrong with him? We don't have any money right now for fish medicine! D:
We love him so much we don't want him to die. What can we do?