I have a jar lid full of bug gel for moisture (that crystal water stuff) in all the live food keepers which prevents drowning and I put in any left over greens or the commercial beardie food (i use it once a week as variety) from Hige onto another jar lid at night and clear them out the next evening when i put in the next lot. if i have any leftovers from cooking like bits of veg, stale bread and such, then i'll put that in there too. I use the pre-made cricket grub as a kind of edible substrate. I've yet to find a single dead one! (Though to be honest Hige will eat anything dropped in front of his nose so this wouldn't really stop him...)
I found that in pet store rabbit/rodent sections you can get dried flowers, dandelion leaves/flowers and other herb mixes for a few quid which although i doubt crickets will eat it, it makes them smell a whole lot better - like some kind of edible potpourri! I bought bag of dried dandelion since i was told dandelions fine for beardies and put some in with my crickets, dubia roaches and morio worm tubs and my room smells lovely now. I keep my live food tubs on top of Hige's viv above the heat fixture and since it gets warm it keeps the tanks warm too.
Whenever i clean the live food out i put them into another large plastic tub within hige's viv (it opens at the top so its nice and easy) and then hige 'stands guard' for any escapees as i clean the cricket keeper. He gets all excited since he knows theres food in there and then when im done i leave a few in the tub, dust them and let hige in the tub to chow down. When he's full he'll just jump out.
The better gutloaded they are,the more they pass onto them,so I chose to feed them the best.! Just me though haha.! You can pretty much feed them anything..Hope this helps.!
