Nice aquascaping.
keep your calcium and dKH levls up and you will have it covered in coraline in no time. If you have any questions, just give me a call. Or pm.
You will really like this months meeting if you can make it. I am outlining how to make the aragocrete and then what happens after it is put into our tanks.
Pretty soon, you will start to see diatoms popping up. If you can go without your lights on for a while, you can avoid this. I never could. Either way it only lasts a few weeks and then you start getting green algae and can start stocking your tank. I sometimes wish I had a fast forward button for time so I could just jump ahead a month at a time.