Greetings! I am noticing my humidity is dropping too fast in my 10 gallon tank. This morning it was at 60% and latley all my crabs have been burrowing. Here's what I have going on Heat Source: Side heater mat along with a over tank blub, that I placed in an bendable office lamp that hovers the tank. Bulbs are Zoo med Daylight 40 watt and Zoo Med Night 50watt Substrate: Beach sand and eco earth with sand castle consisity (purchased from Hermit Crab Patch) Lid: Mesh Screen with saran wrap except for a strip of open air at the edge Misting the tank 2x a day Small Moss Pit, that I spray 2x a day 2 seperate water bowls, salt and fresh So, it seems like I am doing things right, but not sure what I'm missing, and since my crabs are burrowing, instead of coming out like they use to, I figured they are not happy with the envoirment? I am currently calibrating my hydgrometer as well just to make sure the reading is accurate. Any suggestions?