I'm redoing my room and I'd like to include some more space for reptiles- Right now I just have a bearded dragon, but I really want a leopard gecko and a snake, and knowing how I am, I'm probably going to end up acquiring several other scaly and/or furry things over the next year. I'm just going to do a question dump here, though I know they probably won't all get answered. 1. Which is better/more space efficient? And industrial metal shelving unit that can hold several different sizes of tanks or stackable breeder tanks? 2. What are the pros and cons of tile, reptile carpet, and paper towels? 3. Tropical species- how do you manage to keep the moisture at a suitable level? 4. When do you need heavy-duty tank lid locks/clips? 5. Which design is better- opens from the front or screen lid? 6. What are some safe materials to make enclosure accessories out of? Any other advice is appreciated. Add on: I'd also like to start breeding Dubia roaches, and I currently have a 40-gallon Nat. Geo. tank for Thorn, a 20-gallon that I keep superworms in, and a 10-gallon that's empty.