I have six adult mated female grass mantids (Thesprotia Graminis) right now. They were together with the male for a while but the male adult die after mating and i separated the female into each container so they can each lay ootheca without disturbance from other female grass mantis. I am feeding my L1 nymphs small fruit flies (D. melanogaster) and spray them everyday with fine mist. Keep them around 85F and 70% humidity. If you plan to keep them 5-10 of them together, make sure you have a container at least 24oz and separate them after L4 or keep them together in a larger container. Ryan, I was not aware the lady (Sarah Elliott) was selling the nymphs for more than 3 times the price i sold her!!!