i'm so sorry. the same thing happened to Riley, one day he was healthy, the next day he died. maybe from old age. but at least he had a nice home and a nice owner!
Thanks for the wishes. I'm looking at getting a new betta male, although he won't replace Oscar. Oscar was a veil tail, does the care of crown tails, HM, vary at all?
No, they all require the same care. Hm's might require cleaner water to keep their fins in pristine condition, but if you aren't showing them I don't think it matters. I'm sorry about Oscar :(