My betta has come down with fin rot and it becoming increasingly worse. His tail is edged with black on the tips and in the webbings and his fins look tattered and stringy. Within the last 2 days it has spread to one of his little fins which now has two holes in it. I am very worried and hadn't...

Hi. I'm new to posting up here. I have a dragon scale betta. Have had him since June and have had no problems since. Today I noticed he was swimming differently, not sideways. He started swimming with his head pointed down and goes kinda vertically and goes across the tank. His body is slightly...