I'm a new betta owner, my friend moved away and left him with me so I don't know much about owning a betta. Everything was going well until about a month ago, I noticed he wasn't swimming around very much, not eating. I asked the previous owner and she said he gets down sometimes and that he's old, not to worry. But a week ago I looked closer and noticed some white spots on his underside, around the "chin" area.. I have posted a picture so you guys can see. I changed his water a couple times and have been using BettaFix...I have a feeling it's not going to do the whole job although it seems to be helping. Now instead of completely ignoring his food he actually goes up to it...but he still isn't eating it. I'm worried, help!
In this picture I used my flash on my iPhone, so the yellow part under his face area or his "chin" is what I'm talking about as being this white patches. It's the same on the other side but I couldn't get a good shot of it.