Awesome! This is the I for on this product I was looking for. I was thinking of starting off with 1 and buying just a second pump later on. Then put one on each side of my 4 ft tank. I think my harem tank might enjoy that.If you want SPS heavy id go 2 as the controller can run 2 at a time, if you run mainly softy/lps/FOWLR one is more than likely enough.
Do you know if they have any nem guards? Because I am going to build an anemone+clownfish harem tank.(maybe a circus if I can manage)