Thanks for the input. I have them set up in 20L aquariums and they stretch the length of the front plus one side so that would be about 42"...should be good to go!

BTW, for anyone interested in spotteds I highly recommend them. They are VERY active, easy to feed, and are very hardy. They seem to prefer room temperature; only occationally using the hot spot in their cage. I keep them just like corn snakes.

Thanks,
John