You can do whatever you want with it. My tank is a tiny 5g so I just plopped two whole pieces in. I'm thinking of redoing the scale and I have extra pieces so I might take a hammer to one of them.That is really pretty rock, do you break it and make your own shape or does it come pre-formed?
This made me laugh because I’m thinking of naming my fish after horror monsters, Freddy, Jason, Pennywise, etc.