I checked on them this morning and all is fine. I feed them mosquito larvae, i leave the larvae in the containers about 4 per axie, the larvae live about 3 days if have not been eaten. So it wasnt a feeding issue as they always have food in their tummys and on offer. But i did notice them snapping at an air bubble this morning and im guessing that might have been the problem. As for water im using my adults water, and I test the water everyday to be safe.