Jungle Earth is a bit chunkier, smaller chips are Coconut Terrain, hopefully not too big to cause issues if he happens to swallow one or two of those along with his rat?
I'm still buying the plastic tub, if not for the feeds, then for substrate storage, I did have the intention to just feed him into his tank until I started hearing and reading about separate feeding tubs and watching videos and seeing how that worked for a lot of bp's. I'm not gonna thaw my rats directly in water, I'm putting it in a self seal plastic bag and then into a tupperware container and fill that with warm water so it won't be as soaked as it would be if defrosted into water, and I'll dry the rat off really well. I think it's probable he'll drag the prey item off into one of his hides or smth so in the end I guess there isn't much I can do.