Im a veteran betta fish owner. Ive had three healthy happy male bettas. But Ghost, my newest betta is having issues. All the sudden he haas kinks in his fins, like 90 degree kinks, and the tips of his tails look all red, which is not his normal color.
He is not in a filtered tank, but I change 75% of his water regularly, which he likes to throw a fit about. Once Ghost is done with his diva fit he makes me elaborate bubblenests and says goodmorning to me. Basically he is a very curious and active fish.
Could the stuff going on with his fins be fin rot or something related to the very hard water?