Lack of Nitrate in Reef

[fishnugget1]

I have a Red Sea Reefer 750. I have a refugium that grows well but not tumbling. I have a lot of fish in tank & feed well. I never show nitrates. My phosphates are @ .03 and I also use Phosguard in bag in sump. Also have Rox carbon in bag. I never show nitrates. I started dosing ME Coral Nitrate and many corals went pale & died. I noticed product raised All considerably un known by me until too late.

Would I be better off eliminating refugium and just treating tank for elevated phosphates and allowing nitrates to grow to 5-10 to help SPS?

 

[Justfebreezeit]

How old is the tank?

 

[fishnugget1]

10 months

 

[laverda]

Just reduce the light cycle on your Refugium. Cut your lightings in half until they start climbing. Than adjust it back up as your nitrates climb until you can keep them where you want them.