I can understand that but they a VERY well taken care of. Food is not an issues as they get roaches, crickets, worms, and all their supplements. I was just looking for a way to save some money on their substrate where I could since 4 tanks and hearing they need changed every 2-4 weeks can be very cumbersome on the wallet. So that was the purpose of this thread, and they are in no means not taken care of and in no risk of being so.

It's just out of curiosity since coco-fiber is not something they natively live in/on so they have had to been kept on other substrates that are safe and effective. I mean technically couldn't you have them on dirt that has been sterilized such as organic or pasteurized top soils? I bought some miracle grow sphagnum peat moss that is actually a finer consistency than cocofiber but didn't want to place them in anything that would hurt them. So could you at least give me some insight on suitable substrates since coco-fiber couldn't have always been the staple for frog husbandry.