So, I saw more bugs and kinda panicked and decided to clean out my tank

. Not ideal
Dive I had 2 crabs down, but I worried the bugs could be munching on my crabs.
3 are good now, exploring, but 1 was molting. He’s pretty far along, but his big claw and a few small legs of the exoskeleton were left. I isolated him in a 10” x 5” container with moist eco earth, a little bit of sorghum moss, a few shells, and fresh water. I dug a shallow put him in it with his exoskeleton fragments and bee pollen.
Is this ok? What else should I do? It’s so cramped because I wanted to give him substrate to dig down into. Does he need salt water now or should I wait a few days?
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