I'll try and get a picture or two up. I ended up applying three coats of mortar mix. I also just applied some black aquarium silicone to the bottom and edges of the pink foam to hide the color as well as help keep the cement from scratching the glass. I still need to seal the back side of the rock face to seal the foam.

Trying to find what type of acrylic paint would be the best. There is just so much information out there, its hard to seperate the junk from the valuable information. Just try researching silicone for aquariums or terrariums. Some say GE SIlicone 1 is ok some say 2 is better. Some say don't use it at all. I purchased some and after getting home relized it says not for aquarium use. In more reading I have seen that aquarium grade silicone has a higer tensil strength then the GE 1 or 2 stuff so they won't recommend it. In my application I don't need the strength ai just want it to be safe to use.

Mike