Now i understand that the most widely accepted substrate for frogs is the eco-earth, bed-a-beast, cocofiber, sort of product, which would make sense since it holds in a lot of moisture. I have read articles though where owners say that their frogs have become impacted from ingesting the dirt. Is this a common sort of thing or is it just a rarely heard of accident? What are some other substrates are there that work as well as the dirt, if not better? I have seen at some reptile shows where frogs have been kept on a spongey looking piece of foam or something in their enclosures also. What would you guys suggest?