Hello!
My betta and my guppies are in a shared 10 gallon tank, split into two. I know this isn't ideal size, as they used to have a larger one, and my mom got all mad about it.
Anyway, the betta has what looks like fin rot. It's mainly on his two side fins and a little on his longer fins. He's about 1 year old, has a 5 gal space, substrate is aquarium glass bead things, has betta leaf and some silk plants. He doesn't seem to be having much trouble swimming, though we moved switched the fish's sides of the tanks once we noticed so he doesn't have to swim as hard. (the betta's normal side is the one with the filter pump, now he's on the other side)
Questions
-How do I help him?
-Why did this only affect my betta when the guppies seem to have no problem whatsoever?
Thanks!


























