Okay, so I bought an albino clawed frog from walmart about 4 days ago. they told me he had been eating ghost shrimp and i have tried them and he's not responding and growing thin fast...should i try a small feeder fish to get him eating? Also, are there any downfalls to putting him in a tank with sand on the bottom (i've heard they will injest rocks) and large rocks inside? (it used to be rock in my sw tank until I let the rocks die and I boiled them for awhile) please any help would be GREATLY appreciated.