Hi,
Poke holes in what?
There is no lid on the egg box - I only put one on when they are due to come out fo the egg. And even then it is mainly a mesh top just to stop them roaming about the incubator.
the entire bottom of the incubator is 1/4 full of water with an aquarium heater in it. This is what is providing the heat and the huimidity.
Burping it or leaving the lid off would simply mean it wouldn't hold either humidity or heat.
When I was using vermiculite with the eggs half buried it occasionally got slightly too wet at the end of the incubation time requiring some dry vermic being added so I thought I would use substrateless to avoid that.
But I messed up by making the incubation medium a lot wetter thinking they would be sitting above it and didn't realise the flexible mesh would bend under the weight allowing the eggs to be sitting against it instead making it far to wet.
dr del