Okay so I got this piece of live rock with an order that weighs about 20lbs & is about 6 to 9 inches in diameter. The problem is there is a nice open brain on the top. He is no where near the sand bed since the rock is so big. I want to cut the rock so I can get him on a smaller piece & put him where he belongs. The only place in town that can cut rock is a tile & granite dealer who has a rock cutting saw. Is this even safe??????