Very cool article. Its funny, I've been running a super low nutrient tank for almost a year now where my nitrates are about 2 and even though I have almost no algae of any kind left in the tank I do feel my coral have suffered. I know the trend and the advice on most sites in the last few years have been to reduce nitrates to almost 0 but I'm thinking its not really great for your coral.
I'm slowly removing a spoon full of biopellets a day until my reactor is empty and I'm going back to my old refugium that would keep my nitrates around 5-10 and see if my coral react better. My coral used to grow like weeds and have awesome color when I had some nitrate in the water.
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