Hi! My hermit crabs were digging up a storm and making big hills in their tank so I added more Eco Earth substrate to the tank (10 gallon) and moistened it to sandcastle consistency, mixing it all around with the old substrate (Eco earth mixed with some sand). The sand isn’t really visible anymore so I need to get more.
Humidity is holding at 80%, but I noticed some random dry patches in the substrate. 2 almost immediately went down after the addition. I don’t want to dig them up, but i’m a bit worried about them. Will their tunnels collapse because of the dry patches?

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