well, the original batch, we still have at least 4 going strong, and we have at least 3 of the 3nd batch, there are more than likely more than that however since i added the gravel its very hard to find them. there are always the odd one or two swimming around so i know we have babies still! they are starting to look like miniture corys now, can see all their fins, eyes and gill movement. they are so cute!