Hello and welcome to FF Kelsey ! Eli's recommendation on feeding and to move frogs to a quarantine type set-up is very important. Feeders should be same size as distance between frog's eyes or smaller. Crickets should be gut loaded with carrots, lettuce, and cherios 24-48 hours before feeding frogs. Feed at night after frogs become active and remove all uneaten crickets following morning. Training frogs to feed from a small glass bowl will keep crickets there and the dust supplement will remain on feeders longer.

Here is some more info on their care: http://www.frogforum.net/care-sheet-...a-cinerea.html and the use of supplements: http://www.frogforum.net/food-feeder...schedules.html.

What water are you currently using? Recommend treating your water source with Seachem Prime or ExoTerra Aquatize. Good luck !