So I‘ve been running my reef for a year now. There was a two month period or so where I had detectable phosphate, that was during the second and third month or so of having my tank. Ever since then, my tank has been running at 0 phosphates and nitrates at between 5 - 25 depending upon when my last water change was. I don’t do anything special to remove phosphate except run a skimmer (which I empty maybe biweekly) Other than that, I just have rock and a canister for filtration. I feed fairly heavily with white worms and reef frenzy (3 times a day) for the 4 fish that I have. I also feed reef roids to my corals weekly. Why would my levels stay so low? Are there just no phosphates in these foods? Fish are happy and healthy, so I really don’t want to change feeding schedule. Should I dose phosphate? Looks like a small case of Dino may be brewing...already dealt with this once and really don’t want to again.