Hello folks, this is my first post here, I have been a betta breeder for years, I also used to breed guppies..this is an old trick from the guppy trade, a long time ago they shut down imports from the orient because of disease, but those of us who still had connections knew how to cure most of the things that were around st the time...here is a simple fix for many Betta illnesses..Formaldhyde..yes the very thing used for imbalming.
3 drops to a quart of water..this stuff is magic.
Darth