Reply To: Hermit crab heater
That’s a great decision to get a heating mat. Definitely place it on the side/back of the tank. Half of it being above the substrate and half of it below the substrate. All you have to do is make sure you’re misting enough. The added heat may or may not, dry it up a little and if their humidity is not high enough they will slowly suffocate. I bet you’ll see them increase activity though. Mine love their heated side of the tank. Good luck and feel free to drop any questions here!