So i have a cage that a my 2 yr old chameleon just passed away and im concerned that there might be something in the cage that killed him so im going to sand it and seal it this week. My question is what is the best non toxic sealant i should use? i usually shop at lowes but they dont know whats good for a cham. I did buy all new plants and veins, so im just making sure that it safe for my new one! Can i seal the wood without sanding it?