JK47 mentioned that same thing about his other backgrounds... he sanded his 300 gallon background down and some areas were like concrete. That's a good idea about cutting around the stump, maybe I would do that if I were to do it again. Looks good so far and I'm pretty sure when I get some algae growth that you won't be able to see anything at all seam wise.cobra29svt;4668568; said:Yeah, that's what I did. Had to use a dremel on a few spots because it was either fiberglass or resin...not sure which. Either way, a razor blade wouldn't touch it, & a dremel even struggled to get through it. I didn't cut mine in a straight line though. I followed the stump & cut between it & the rock/mud wall hopng to blend the seem better.