yes...but do be careful,the fry are tiny...i had to look for mine with a magnifying glass sometimes. i did not use a heater because i was in hawaii when i was breeding,with five gallon tanks on top of bookshelves in the office.windows. i guessed the weather was close enough to natural environment.and about the males killing the females? i have seen some full grown ladies whoop on the guys,too.so try to make sure they are the same size,female bettas fight,too.