ya he is eating worms. The 20 gal was a quick fix. He is only 4 inches so I didn't foresee a problem with him recovering in it for a few days. I have 2 30s, 2 55s, 70 and three ponds(250,300,500) sittin empty right now. I have been keeping fish for about ten years and NEVER have I had a fish I couldn't handle so when I saw the rays, I knew I must have one. This is the first time I have ever seen or heard of freshwater rays in Iowa.