I got a betta the other day, my second one, at wal-mart. I saw him sitting on the shelf, all sad and sick looking in a cup that hadn't been cleaned for days. I got him, gave him a nice 5g tank, filtered with a heater. His fin rot cleared up quick, as did what I assume was ick, but now his head has red splotches on it. He's mostly white with some blue and red on his fins, but it's not the same red that's on his head. It looks a little like blood that's under his scales. I'm just wondering if it's something I should worry about.
Also, his poop is white and stringy, which I know means he has a parasite, I'm just wondering what methods I should use to get rid of the parasite.