Well, I can't say that I've used the setup long because it's only day one lol. I said in an earlier post on this thread that I won't be feeding him on the moss or gravel. He's a pretty outgoing frog, and I can remove him from his enclosure to feed. I also know that if enough coco fiber is ingested it can also cause impaction just like gravel, or moss. Obviously the rocks are WAY harder to pass through their system. But like I said I have no intentions on feeding him inside his enclosure, so no worries. I have seen the picture of the budgetts that did that. They are an aquatic species and I'm pretty sure it was fed in it's enclosure, and accidentally swallowed some. I know of lots of people who keep their pacmans in JUST water. I don't agree with that method, but I do believe they are quite fond for water. Like I said he hasn't left his pool yet haha! And my pyxie frog that I just got doesn't seem to like the coco fiber setup. She buried herself completely for weeks, and wouldn't eat. I put her in water last night, and now she's eating again. She also seems to be displaying a more alert look to her. So between my pyxie and my pac constantly losing his appetite over a mouthful of dirt I'm a believer in the water setup!