Hi. I am still learning how to go around this site as a newbie. Please feel free to move my thread to the right home if needed.

I currently have five Ball Pythons ranging from 71-1800 grams. I recently purchased four this spring/summer and want to get more soon to start my collection. Right now everyone is in a separate tank. All tanks are 88-92 degrees and 65% humidity roughly. All tanks are in my bedroom so my room has been pretty hot this summer. So I am currently deciding on if I should get a rack to help free up space, keep everyone at same heat and humidity. But I am having a hard time finding a rack that I feel will work great. I have looked on craigslist and found two different ones but now I am wondering what the dis and advantages are for the racks. I am worried that a rack will not hold my younger two properly to keep them in. I don't want any to get lose or escape. What would I need if I decide to go with a rack? Do the tubs need lids or?

Here is what one ad said that I am thinking about, "6 tub, 32qt melamine snake rack. divides into 3 pieces for easy moving. Each row has a small recess for one continuous piece of heat tape to weave through. Includes heat tape with cord already on it and the tubs. Does not included thermostat. Feel free to ask any questions. I used it for ball pythons. $80."

I would appreciate any help with deciding and more information.
Thanks again,
Nichole