Have to correct myself a bit, they are not CRS but Cherrys, "plain" and Sakuras. Nope mate, they did not carry eggs when intoduced them, or....? I got Sakuras for free from high-quality breeder as low-quality stock at the beginning of Jan. The breeder tried to be carefull not to pick egg carrying females not to stress them throw eggs away while a long transport. As far I can see (not an expert on this!), I found first signs of eggs about two weeks ago. I bought three Bumble-Bees (all there was..) at LFSs a bit later, they have done also fine, but so far no signs of breeding. They are pretty young so I cant identify their sex yet, maybe they are all same? I donnou about losses, their tanks are full of wood and plants but I havent seen any sick shrimp, knock knock..... Two years ago we used to have "plain" RCSs for some months but then their hometank turned to be Tanganyika-tank and all shrimps were given away. Except one... For some reason there, in Tanganyika hard water, lived one "plain" for over an half year! Donnou what happend to him later, he just disappeard. Maybe fish, thou they were small Neolamprologus, ate him or he was just done? I`m aware that this can end up a disaster with poor shrimps but so far so good. If so, I will never do this again. I try to take extra care of water quality of their tanks in order to keep organic waste as low as possible, minimum ferz (EasyCarbo yes) etc to make their lives as easy as possible in these hard conditions.