HI, I'm new to the forum and looking for some advice.
One of my bettas, Purple, developed a long white streak on his bottom fin. It's about 1/2" long and maybe an 1/8" wide right in the middle of the fin. He seems healthy in all other respects; he's active, eats well, and has built an impressive bubble nest. I know there are a lot of other posts asking for help with similar problems, but I haven't found anything that really helps. (Note: He doesn't have small white spots, just the one big one on his bottom fin.) I'd really appreciate it if anyone has some ideas on what this might be and how I can treat it.
One of my bettas, Purple, developed a long white streak on his bottom fin. It's about 1/2" long and maybe an 1/8" wide right in the middle of the fin. He seems healthy in all other respects; he's active, eats well, and has built an impressive bubble nest. I know there are a lot of other posts asking for help with similar problems, but I haven't found anything that really helps. (Note: He doesn't have small white spots, just the one big one on his bottom fin.) I'd really appreciate it if anyone has some ideas on what this might be and how I can treat it.
