My recent rescue betta has been doing well so far, but I just noticed he has a very pronounced single stripe across his side. Sort of like a female, but only one. I've never seen or heard of anything like this and am very concerned....
Nothing too out of the ordinary, really. Only changes today were the addition of Flourish Comprehensive for my plants, a couple of Amanos, who don't seem to bother him in the least, a decent (25ish%) water change and the ingesting of a whole algae wafer, resulting in a bit of bloating.
Levels are all perfect, temperature is stable and the tank is free of any debris from the plants. Any help would be oh-so-greatly appreciated. I really don't want to lose this guy after he's defied all odds and recovered already.