Dosing "" N03 "" are you crazy!!! maybe I am.

[smpolyp]

Having a zero reading and a .02 reading makes sense due to the test kits limits. If you fear it maybe wrong you can double check it with another. I think it sounds spot on as you think you have too low of a level. I would say keep using it and keep up with the trend of the kit as the trend is better to see than nothing.
As for the kalk if it smells funny or is not pure white ditch it and get some new stuff.
Seawater over synthetic is always a great choice if collected correctly. Unfortunately with you working on a fine line with a finding a perfect balance you would have to pick one of the two for stability. Fine tuning levels like this is a daunting task, but is at the pinnacle of reef keeping. Keep up the good work.

[Jim28fl]

I ended the Kalk last night on the big 300. since I'm still fish only out there and just testing corals.. i may do a large water change then begin my auto WC schedule and add talk back in later. the ph made it to 8.45 and stable the last few weeks just before i stopped using it. ill see how far its drops back down with the ca reactor running out there.. its on real low so i expect very lil effect.

Ill ask run some good carbon after the big water changer i think.

on to the results so far on the sps stump remover tank. so far things look good bit more growth in the FUGE i think. corals seem a bit more inflated. test still show 0 so ill stay on course another week and maybe up the dose a bit. I'm in no hurry here as things look pretty good anyway.. but i can tell after so long now.. that i just don't have enough nitrate in there i think.

Stoping the auto water change would let the water get dirty as would stopping the skimmer but the adverse effects are more of an issue than the dosing schedule n set up of the P03 dosing i think at this point. if there were other issues i may choose a different solution. next week ill run a p04 test as well make sure that is still very low or 0.

I'll try n post some pictures when I get a minute.