Guess the Nitrates

How much nitrate do you think this tank has?

  • 0 ppm

    Votes: 1 2.3%
  • 4 ppm

    Votes: 3 7.0%
  • 11 ppm

    Votes: 3 7.0%
  • 22 ppm

    Votes: 20 46.5%
  • 35 ppm

    Votes: 16 37.2%

  • Total voters
    43

Reefer Matt

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I just tested my nitrates in this 4 ½ year old 75 gallon sps tank. What do you think they are? *Tested with Hanna Nitrate HR.
PSX_20230624_152144.jpg
 
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taricha

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No pale corals. Dark color on sand and Rock. Wildly guessing 20ppm
 
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Reefer Matt

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No pale corals. Dark color on sand and Rock. Wildly guessing 20ppm
I have Hawaiian black sand. (Though I wish I knew it has iron in it and scratches glass) :beaming-face-with-smiling-eyes:
 
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Reefer Matt

Reefer Matt

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You guys are just too good! It's 22 ppm. Well, according to the Hanna, anyway. So ~20-24 ppm. And yes, the point was to show that higher nitrates can be beneficial. But I do have a serious cuc with four urchins and a bunch of snails to keep algae down. Good job everyone! I shoulda known I couldn't fool ya! :grinning-squinting-face:
PSX_20230624_194811.jpg
 
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Reefer Matt

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Pretty sure it's on the high side.
Absolutely. But this tank is happy at this range, and has been for a few years now. When I used to run it at 5 ppm, the coral were much duller and didn't seem to grow as fast. Just another perspective that shows that there are more ways than one to reef.
 

taricha

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But I do have a serious cuc with four urchins and a bunch of snails to keep algae down.
Nice. Would like to hear about your PO4, and what kind of urchins and snails.
 
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Reefer Matt

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Nice. Would like to hear about your PO4, and what kind of urchins and snails.
I just tested, and phosphate is reading 0 on Hanna ULR. So anywhere from 0 to .02 ppm. I do have a refugium with chaeto.
Urchins include four pincushion. Snails include mostly astrea, with some trochus. I usually order 100 snails about every three months as they dwindle in numbers. Also have a very large black brittle star.
IMG_20230624_210325~2.jpg
 

Freshwater filter only or is it? Have you ever used an HOB filter on a saltwater tank?

  • I currently use a HOB filter on my reef tank.

    Votes: 50 24.9%
  • I don’t currently use a HOB filter on my reef tank, but I have in the past.

    Votes: 51 25.4%
  • I have used a HOB on fish only or quarantine tanks, but not on the display tank.

    Votes: 47 23.4%
  • I have never used a HOB on a saltwater tank.

    Votes: 49 24.4%
  • Other.

    Votes: 4 2.0%
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