frag saw

[reefermadness]

Originally Posted by reefwars

Actually the rock is soft it's the calcium carbonate that's hard and will dull the blade, live rock is a breeze with it you get the 100?

All rock from the reef is made of primarily calcium carbonate and built by dead coral. Some is more porus than others but its made of essentially the same thing. ONly difference is in the type of life that it was made from.