Trying to raise Nitrates

[reefermadness]

SO what is the problem with the SPS. You could probably get some good advice here.

Definitely 5ppm NO3 is not needed. I dont think it would hurt but I have had great SPS growth and colour with unregistered NO3 and PO4.

Personally I think that when people see a positive reaction to increasing NO3 or PO4 it's actually a postivie reaction to something higher up on the nutrient/food chain. Ie. feeding more.

My philosophy is high import (larger bioload, larger amount of quality food) and high export (quality filtration). Bascially allowing there to be a constant influx of food yet with the filtration ablity to keep the broken down by products (disolved NO3 and PO4) to a minimum.