Harley20
New member
I had crushed coral in my first saltwater tank it is much coarser than sand and allows sediment to fall into it as apposed to sand which does not. Crushed coral can eventually become a nitrate factory. In any case, nothing to worry about now.
It's called caribsea aragonite. It's not the fine but probably one size up from it. It was what the lfs has in their tanks. Is that ok to use?
I will probably move some of the rock around to make better tunnels.