Hi, last year I managed to keep alive a male and female Chinese mantis and they reproduced and my baby mantises just hatched (thanks to the wonderful support and advice from many on this forum!). I do not have fruit flies on hand and I just ordered some but the seller said they are fresh and therefore I must wait 6 to 10 days, after they arrive, before I feed them. Im not sure why, but am wondering if its safe for the mantises to wait that long, or if I should order some riper FF as well.Any advice?