NP went to zero

[brianxcheng]

So far my SPS tank( KZ system) is doing great and have polyp extension. Now I’m concerning the NP went to zero for while, it might cause Dino or something bad happen. My action start try to feed a little bit more twice a week (CV 10 drop, Oyster feast 5 drop, R.O.E 5 drop & Zooton 1 Poon). Should I have further action on be conscious prevention. I should take?
Thank you and welcome on any advice from reef fans

 

[Salty_Northerner]

For me I'd probably dose some calcium nitrate and some phosphate and see if you can get it to hold. Better to have NP then nothing.