I wasn't to keen on the fly thing either but when I saw that they were flight less I thought what the heck.My froglets are all only simi captive the only really intervention by me was feeding them. There parents found a wheel barrow and a 10 gallon fish tank in our backyard. During a 5 day rain storm we had a couple of months back suitable to breed in . So most of the ones in the wheel barrow are just kinda wondering off and hopefully finding food I haven't yet seen any dead. But there is a lip on the fish tank so they really can't just hop off. I have also set up bog wood for the morphing tads so they can get up out of the water but like I said once they get strong enough or big enough to jump 4 to5 inchs they to will wonder off. That's where first off pinheads were to big and they were small and also surrounded by water a lot of them drowned .But the flightless flies have pretty good legs on them and cruz around the wood and don't fall in to the water and drown and were suprizingly easy to put in tank and stayed there till all were eaten no escapies. I think after all is said and done I may just keep several of them to breed next year but. The rest once there full n ready will be released and hope some keep coming back. Each situation is different but they sure did gobble up those flies n I had tried many other things . If you try out sping tails and the gobblem up let me know. Thanks bye