Thanks everyone for the very nice comments.
I am wondering what type of sand you are using in your tanks? And where did you get it? It looks awesome.
Hi, it used to be called estes sand. But it wasn't this fine. It also had a bad habit of floating for awhile , or part of it did. When you would first set up. So when I went looking for it and googled estes sand, another website popped up and I ordered it, but what I received was something different. It is called sea corals dot net, and they still list it as estes sand.