What would "happen", is that you would have two, smaller pieces of still-viable live rock.
I broke a big chunck in half when I first set up my tank. I ordered some live rock through an on-line source and the pieces were too big for my first tank (a 29 gal).
Nothing bad would happen, if that was your worry. The inside of the rock looks just like the outside of the rock except less colorful. In fact, you would be creating MORE surface area.
But if you find a lost treasure, it's mine... I lost it
Dizz,
It is perfectly ok to break live rock !!
Many of us do that all the time.
Personally, I use a chisel and hammer and it is easy.
If your rock is heavy and round- it sure would be better broken.
Easier to stack that way.
i just broke my bowling ball rock and its all white and smooth in the middle with some small earthworm type worms slithering through the holes. is it suppose to be white n smooth?
Heh, if you've ever seen what rock looks like when it's fresh from the airport, you'd know it's ok. For tips and tricks on breaking live rock, consult your local airport, they break, smash, and crush more live rock than anyone!