Reptile prime looks good.. However it seems to be quite pricy compared to a $5 brick of eco earth..

I'm liking the idea of the aspen I posted, however slightly worried it will kill the humidity (maybe I'm just paranoid from having to maintain humidity in a tank). Any dangers that come with aspen that I should be aware of?

Also, I've seen people use tubs with Velcro to keep it locked. Would a latched lid suffice on its own?

I would really prefer not to have to get a second thermostat, but I will do what is necessary if it gets too cold.