Finrot seems to be a bit of a problem with Bettas, but also relatively easily treatable. Usually the main reason they get it is picking it up at the LFS, like the 2 we treated. Keeping good water & avoiding decor that would tear the delicate fins really reduces your odds of having to treat finrot, I think.IheartmyOscars said:thanks for the info. I think I'm gonna go for it. One more question: do Bettas often become ill, with fin rot, etc.? I saw the announcement on this page about Metifix (sp?) but I've never had the need to treat any of my other fish for any reason, except for a case of ich from some mollies bought at petco. thanks again.