[rossb]

I have been having problems with my polyps, zoo's and invertbrates. They do not open up well.

In my area there are others that use the same water and have the same sand bed (peening beads and aragonite). They have no problem. Of all the people that I have talked to (with successful tanks) the only difference is the aragocrete. I am going to take it out, replace it with tufa and real live rock and see if that helps. If it is not the aragocrete...well it will be available.