I have two fake tree log/branches that I bought from Petsmart awhile ago that are in the beardie's tank. One is right below the heat source and the other is on the cool side. I'm also planning on buying some ceramic tiles to line the bottom of the tank to help retain heat at the bottom (right now we're using paper towels as a substrate).
Based on your comment, it sounds like what I should do is just replace the 100 watt CHE with the 150 watt CHE and keep that plugged into one of the Herpstat's outputs and then put the UVB bulb on the other Herpstat output but set that output as a light timer (rather than as a heat regulator). Would that make sense?
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Oh, I'll have to check out the "rock" shelf hammocks. Thanks for the recommendation.