Hello to all at the HC! I am currently in the process of building an "in the wall" cage for my WD. I decided that I was going to line the walls with artificial rock to make it as realistic as possible. I have went over lots of already given advice, and lots of projects already completed, however since this is going to be a really large project I would like to make it as durable as I can. Predominately the greatest questions I have are regarding the materials. - Is liquid nails safe to use? I've seen plenty of guides yet no one is concerned about it. I'd prefer this to silicone because the weight of the finished panels will be substantial. - Tile grout vs. Cement, has anyone experimented how they compare in strenght and weight? - What paints have you mixed into the mixture? (dont just say acrylic, perhaps latex wall paint? hobby model enamels? etc) - How well do tile and cement sealers hold up? Some say they allow transmission of vapors and moisture, and are rated for food use. Will these work well to seal a water pool? (I'm not a big fan of epoxy... too hard to get and too expensive, in addition it isn't perfect according to many people) - Also, I'm lining the enclosure in plastic before affixing the panels (even the ceiling). Is .23mm painters drop cloth sufficient or do I have to invest in the overpriced pond lining? Remember this is for a WD so humidity is the only real thing of concern. (this is question is mainly for the viv users) Let me know your experiences, any testing you have done (most people don't list this because they think its irrelevant). I will be trying some mixtures and ideas next week, since like I said, these panels have to be more or less permanent. Thank you all in advance! Cheers! Dmitry p.s: I am about a month away from being ready to put up the rock walls.