I'm really struggling to get nitrates above zero, while my phosphates are around 0.15-0.25 ppt (Hanna ULR).
Is it OK to have zero nitrates, if I'm using Core7 and a relatively large refugium? Since when I attempt to raise nitrates, with NeoNitro, many of the corals retract completely. Then after a few hours they recover. I'm only dosing 2ml/day for 3 days, for my 60 gallon system, which barely raises nitrates to 0.2 ppt. If I don't dose NeoNitro my corals are generally doing good/great.
I'm guessing that maybe the fuge and corals are consuming all the nitrates.
FYI, I've tried to raise nitrates 3 times in the last year and every time I get the same result.
Any help would be greatly appreciated, since I'm really confused.
Is it OK to have zero nitrates, if I'm using Core7 and a relatively large refugium? Since when I attempt to raise nitrates, with NeoNitro, many of the corals retract completely. Then after a few hours they recover. I'm only dosing 2ml/day for 3 days, for my 60 gallon system, which barely raises nitrates to 0.2 ppt. If I don't dose NeoNitro my corals are generally doing good/great.
I'm guessing that maybe the fuge and corals are consuming all the nitrates.
FYI, I've tried to raise nitrates 3 times in the last year and every time I get the same result.
Any help would be greatly appreciated, since I'm really confused.