Brandon K.A
Aquarium Advice Freak
I'm setting up my 29 gal brackish tank, and I'm noticing that a rock I bought awhilr ago has two clam shells on it. what kind of rock is this? long ago, I bought it dry on a shelf at a LFS. I used the rock in my old freshwater tank, but have it in my now low brackish tank. what is this rock? I can't seem to find info on it.the clam shells are in the darkish looking cave area.
