I'll be getting my live rock soon, and beginning my rock scaping adventure/headache. My 45 gallon tank is tall and narrow, 36.25L x 24.80H x 12.6W. While browsing around, I saw a post where someone had glued a rock wall to the glass wall of a nano tank. Yet everything else I've read says to keep the rock away from the glass. My question is, given the narrow space I'm working with, is it okay to glue some rock structure to the back glass wall? What are the pros and cons of this? Or is it a big no-no? I'd like to hear what you all think. Thanks!