Chase31's 50 starfire aquascape reef

[Chase31]

So the levels were looking good, and do to other reasons I haven't been able to do a waterchange since my last test of almost 0 ammonia, and my skimmers still not skimming I have my dual BRS reactor running carbon then GFO and supplying the skimmer chamber with water. And still no skimmate, is my ammonia to high maybe? I'm going to test it tommrow. Or do I have something else messing with my surface tention?