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  1. Gilles

    MPK solution without phosphates?

    I have this wierd problem. I bought 2 different bags of monopotassium phosphate and made a pretty strong solution with it. (>10gr on 100ml water) Both solutions don't measure any phosphates in it using both my PO4 profi test (drop test) and also not with my Hannah PO4 tester (digital). What...
  2. Gilles

    Confused about mineral salts (EC/TDS) concerning shrimp tank

    Question; i have bought an HM digital AP-2 tester to measure my conductivity of my R/O water unit. I want to (only) use R/O for my new tank and i want to get it up to 3.5 Kh. If i look at the manual from Dennerle Remineral+ for example it states: So adding 10g to 100l gives you: 1.3 Kh 2 dGH...
  3. Gilles

    Sera Mineral Salt formula changed?

    Does anyone of you know if the formula for Sera Mineral Salt changed? I bought the product before to raise both the GH and the kH of my RO water, but now it says on the packaging that it does not affect KH (anymore?). Does anybody know more?
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