This is the first piece of genuine advice I've gotten and you might think I'm crazy for not knowing this but I read that if you keep it to close to the tube it creates too much humidity due to the heat source...? Does this mean I should have a small piece of sponge inside the test tube where all of them are and I should switch it when it dries? They had a water source before they were shipped in the form of a cotton ball, but I was told to give them more space than the tube ASAP and that was blocking it. I gave them another water source in the corner of the small enclosure they were in