Hi all, havent posted in a long time! I have a trio of hystrix stingrays in a 240 wide aquarium (2 female, 1 male) The females were both purchased at separate locations in December 2010 (3" from Thatpetplace, 4" from a shop in NJ), the male December 2009 (9"from Rapps). this past july (2012) the male was seen attacking/mating with the larger of the two females (THE 3-INCHER now about 12-13 inches wide), chewed her up a little, and after a few days the activity ceased.....Obviously they successfully mated as it has become very obvious that she has babies moving on both sides of her back. I read a few posts about stingray gestation period. Im going on 110-120 days at this point, and wondered at what point to start looking for her to give birth. I know there is at least 2 as you can see separate movement on both sides of her back....Im pretty psyched about this! I will post pics later of the pregnant mom.