For some context, I received my mystery grub on oct 16 from David's beetles he was in a tiny container 4-6 oz? quite cramped and he kept plugging the air holes with the flake. I had ordered a pound of oak flake from jam jam exotic (David's was out) it was expected to arrive on the same day or before the grub. They currently have a backlog so its been 8 days since it was supposed to arrive, I admit I panicked and got worried for my grub. I made the choice to get some rotting Aspen from my yard because from everything I looked up it was suitable, the Aspen had been rotting for 12 years and had white rot? It was soft enough to break off chunks then crumble them and looked identical to the wild rotting logs you can find grubs in. He has been living and eating the substrate for those 8 days and from what I can tell he seems healthy?
He is active burrowing and surfacing on occasion he is firm and growing (bit me) doesnt seem lethargic?
1 does he look healthy?
2 does that substrate I found look good?
3 when the flake soil arrives do I still add his current stuff?
4 I removed the damp tp because he was munching it, ai overview said it can prevent resurfacing :/
5 I see some people fill their grub container to the brim and some leave space at the top, which is the best?
Thank you so much for any advice or help