I think what Jo said holds a lot of merit. Housing young ones in tubs seems to really allow them to thrive.
I remain unconvinced that a jerry rigged fish tank works for snakes unless you have really good luck; *cough cough Adraina and Butters cough cough*
If you talk to Rich, or go to his website, I would suggest you also look at his cages for when your snake is a little older and more secure. I have these http://www.reptilebasics.com/2x3-Cag...h-p-16286.html and I love them. They work really well and are made for snakes. They look great too!!!