As I may have mentioned on previous snail threads, my assassins bred very nicely, to the point where I swapped a bag of them for a bag of black sand with my LFS. They told me at the time that they could not get any success with breeding them.
They don't breed as quickly as pest snails, and it takes a good 18 months for an assassin to reach adult size.
They don't breed as quickly as pest snails, and it takes a good 18 months for an assassin to reach adult size.