I'm picking up some black HDPE sheeting on Saturday morning. I don't have much info on it, other than it's 8 feet long by 18 inches wide by 1/4" thick. Is there any reason I can't use this as my false bottom? I've been searching, but can't find any definitive discussion. I will use it elsewhere in the set up if needed. Just wondering if there are "types" to avoid using on the bottom of a reef tank...
