Thanks Tony!
I'm thinking mostly of doing zeo/polyp labs as a last resort before complete tear down. As well my problems aside I've seen some really nice sps systems using these products, and it does add to the draw.
I'm measuring PO4 with a Hanna Phosmeter, but I agree with you about verifying everything. Its nice to have the meter, but its frustrating not to know if what you're getting for a result is correct.
The tank has what I estimate to be 60 to 65lbs, with 25lbs being in the sump. Thinking back this tank has never produced any coraline algae. That rock that you are referring to is new to the tank from December.
As for the Ca & dkH, I didn't see any better growth (in the sps and coraline) then I was getting measurements of 500ppm and 10dKH. I think I need a more happy medium like what I was getting two weeks ago. The dKH is up to 6 (cusp of 7) now that I topped off for the day. I'm looking at changing how I top off, and how my Ca reactor is working within the system.
I guess my next steps are to get out some of the "bad" rocks and replace them with newer ones. I am also going to tweak my reactors, I think I've turned them down too much trying to fix the 500/10 problem. Does that sound right to you?
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