Hi folks...just joined this forum a few days ago and have been trying to find a spot to post this question. I've added water gardening now to my other "hobbies", but have a question on crawdads. We're trying to put in a run off to circulate the water and I've been hauling in creek sand/gravel in buckets to add to the natural affect...I've been told if you get a crawdad in a lined or cement pool they can do all kinds of damage...anyone here have any experience with this? What I'm packing in has been on the bank, so its dry but wasn't sure if crawdads lay eggs, hatch live and if they do whichever in or out of the water. I've tried a few searches on the net but haven't run across any info on any of this, so if anyone has any info or a site to direct me too I'd appreciate it! Thanks!