I’ve got a tank that I am going to be setting up soon. I was thinking about it because of the added texture inside the tank. The type of stone I’m looking at using is natural slate for it so I feel like it wouldn’t cause an issue with the water parameter. The main thing that concerned me was the mesh that’s used to connect it all together. Plus the glue used for it to attach to the mesh. The only way I know to find out is to do it. I just hate to kill a fish while doing it. I tried to find where someone who has already done it to no avail.