Hi Guys, I'm making this thread for the new members, ones who like myself before, search for ways to keep their hatchlings warm and humid. Hopefully my pictures will give people some alternatives. My phone memory including pictures will need to be purged soon and I thought before I do that, I'd record of fruitful sleeples nights of a brand new owner of baby tortoise for the newcomers out there who still struggle with keeping their baby torts warm, humid or both. started with pretty barren 40 gal tank, covered with the framed reptile terrarium screen with hinges in the middle so that 1/2 of the top can be lifted for easy access all the time. I liked the idea of that screen, it's large gauge, designed for the heat and UV light domes to sit on it which solved one of my many dilemmas ("how to secure the lights? It's ELECTRICITY! And will get HOT!") It worked fairly well on warm day but with room temps fluctuating I was constantly trying to fix/adjust things. Ended up with 7 different temp/humidity gages for closer monitioring and still it was way too dependent of air conditions of the room where the tank was. It became clear to me that even this 40 gal enclosure would need to be covered and I started searching for the ways to replicate Tom's closed chambers, only with Pearly's lack of "handy/crafty talents" as well as "poor man's budget". Fyi aluminum foil did not work! I hated trying to cover around the lamps. It may work better for people who have side entry to their terraria. Mine is from the top and has to be moved all the time. I needed something fixed to both sides of the screen top. The foil was a pain in my butt to deal with it every time I needed to open the 1/2 top to get to the babies. After many trips to Home Depot and Lowes I finally found what seemed to be safe enough to use around heat and electricity! Reflectix in construcion/insulation section , just cut it to shape of the screen top 1/2's and secure edges with this tape (also found in the insulation area of Home Depot) . Then cut openings for the light domes I switch between the 2 round lights day/night. One is CHE the other is daylight my gun thermometer reading from the inside of hide on warm side. Temp of the substrate is consistent 79F humidity in low 80's. I no longer have to worry about a/c being on etc... I'm having to change plants all the time now. The babies are bigger and getting more distructive. This set up has worked as full time enclosure for 2 RF hatchlings for about a year. At this point the babies are spending more time outside and this summer will be moving to their outdoor pen during a day only. Will keep this terrarium for their nightime dwelling until they outgrow it and ready for their outdoor heated house. I hope this helps someone out there.