I am on the hunt for isopods for both my garter snake and crested gecko bioactive enclosures. I have tried the white springtails and dwarf purple and neither seem to colonize my garter's tank. I have had a few quotes and they end up costing more than the snake or gecko cost me. Truthfully these little guys are a luxury and not a necessity so I can't see spending that much on them. So I am wondering what the best bang for your buck species are and where to get them? I have pondered going into my own garden to collect some pill bugs but worry about parasites. I would love to hear about your experiences and knowledge.