New ball - question about tank lid

[scubadude]

so could i use a heat rock with a thermostat on it?

I'd stick to an undertank heater on a thermostat, works well and a simple setup

i havent seen humid hides

easy to make your own, for temporary purposes I use an old plastic tub with an access hole in it and fill it with damp moss and sit it in the hot side of the viv or RUB