What is generally the easiest most cost efficient and safe way to keep your ball pythons warm while kept inside a rack system..? Thanks in advance for your input. Asking because I have a 950 gram male in a 30 gal tank right now with a heat lamp (which obviously wont work with a rack system) and I am suppose to pick up two females tomorrow one at 1000 grams and the other at 1500 grams.. Tanks aren't practical at this point so I would like any suggestions. Thankyou