Hi iv had my bearded dragon for about 4-5 months now and hes pretty big in his 20g and im gonna upgrade his enclosure to a 40g. I have my entire plan out financially and everything i just have a question so i plan to use excavator clay as substrate this time (used paper towels for his 20g) and ive used a heat pad for him just because i think its a little extra for him and i think he likes it. My question was do i need this? If i could have this would it work with excavator clay as the substrate? And if not what other way could i allow this to work thanks.