It's most likely just peat moss with "organic" fertilizers added in such as the ingredients they listed to add nutrients to it, bonemeal, earthworm castings, etc.
Clapton is acclimating okay I think. He's quick as lightning so I'm not sure how much I should bring him out of his house yet. He's not at all interested in his salad though. I wonder if I should change what I'm giving him. Least he's eating his crickets.
Things to do:
Buy calcium powder
Material to raise surface for basking spot
Scenery decals for back of tank