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Revoreef 3DM reef sand


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Hi all, it has been over 6 months since I added revoreef 3DM reef sand to my nano tank. I have been able to establish the consumption rate of Alk by my corals and have started to dose alk supplement. However, I have measured fluctuation in Cal between 420ppm - 500ppm without dosing any Ca supplement. According to Qi Hu's website about the revoreef sand, the artificially manufactured sand contains minerals and trace elements, specifically mentioned CaCO3, MgCO3, and Mn. I wonder if it's the sand that has been causing the fluctuation, and if so, is there anything I can do to combat the issue? Thanks in advance for all advice. 

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  • 3 months later...

Just a quick update. I'm still having problems with Ca fluctuation and I'm contemplating to remove the 3DM reef sand. I have measured my Ca for the past few days with Salifert Calcium test and have got 370ppm on Thursday, 350ppm yesterday, and 400ppm today. I have not added any Ca supplement as I'm unsure about how I can dose with this Ca fluctuation. Would be great if anyone who had or is still using this substrate to share your experience. As of now, I will be cautious in using this sand again in any reef tank, but don't see any issue using this in FOWLR system. 

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  • 3 weeks later...
  • SRC Supporter

Maybe u would also want to check if the issue was due to your test kit as well ?

Try get another test kit brand or do two same water test on the same day to see if it tally.

Sent from Singapore Reef Club mobile app

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Or get a reference fluid to check if your test kit is reading right

6.5 * 2 * 2 + 3.75 * 1.5 *1.5,(Decomn on 14/9/08)
4*2*2 + 2.5*1.25*1.25 (Decomn on 1/8/09)
5*2*2 (Fully LED light system, 140 3 watt SSC leds with 60 degree lens)(Decomm)
2.5*2*2(Fully LED Light System,96 3 watt SSC leds with 60 degree lens)(Decomm)

5*2.5*2(LED only)

Eheim return 1 * pump

1 HP Daikin compressor with cooling coil
2 Jebao OW40, 1 ecotech MP40,
1X6085 Tunze wm,

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1 Full spectrum E27 led light

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Start No Water Change since 1st Dec 2016

Add new 2.5x2x 1.5 ft 

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