WOW this stuff is HARD and STRONG when dried. So rought that it would need to be sanded smooth for the soft skinned Herps. I changed the plans a bit. I ended up cutting the platform and the bottom half of the BG off. I was concerned on how the glue and moss would hold up submerged in water. I was also worried about buoyancy issues witht he foam. Now the water level will be under the BG with a filter and rocks and waterfall. I hope to post pics this weekend of the finished product