No one was trying to be rude, just looking out for the best interest of the snake. As far as a light on top, I have cats and I have dome on top of my Leopard geckos tank for a day light and basking bulbs in domes on my custom built beardie cages and what I do to make sure the cats can't knock them over is drill holes near the edge of the dome and take metal wire and secure them to top of screen. If the glass under the substrate feels warm even a little bit it means it is over 98.6 bc that is what human body temp is, my uth are set at 90-92 and I can feel absolutely no heat coming from them bc they are cooler than my body temp. Again this is just advice to help you avoid a hurt snake and a expensive vet bill.
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