Nitrates seem to stay at 5 which isn't bad although I think I'm going to pick up another test kit to verify this.
Someone else suggested maybe not enough flow through the frag tank and back to the main system. This is one of the things I will replumb in a couple of weeks. In the meantime I added a HOB overflow onto the frag tank. Since I stopped the zeo and added the extra flow through the frag tank at about the same time and the algae started to decline it's hard to say which did it or if it was a combination of both. I'm going to increase the size of the overflow and turn it into a herbie style overflow for noise and bubble issues.
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150 gal Custom. Born 5/7/07. 50gal, 29gal, 20gal Sumps. 30gal Frag Tank. ETSS 800 Skimmer, Deltec APF600 Skimmer. PFO Solaris Lighting on Display and Frag Tank
My Tank Thread
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