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Results 1 to 10 of 14

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  1. Default Best practice for accurate PH readings?

    0 Not allowed!
    Hey there. I'm puzzled.
    I tested perims on all 3 of my tanks this morning. Had an odd thing happen with my PH readings. I tested PH last so the water sat a bit longer in my samples. 1 sample read exactly as I thought it would: 7.2 The other two, however, one didn't even register and the other was barely a 6. So I retested all 3 and came up with the same numbers. Then I drew fresh water from the two tanks in question, tested right away and came up with 7.2 - as I'd hoped, because that's what it usually runs in all 3 tanks.

    So -- now I wonder if I should trust my test kit or if it makes a difference (in some cases) if you leave the water set a bit longer. Most time elapsed would have been 15 minutes. The first sample that read 0 was in a paper cup. the other that read only 6 was in a plastic cup.

    Any thoughts?
    Last edited by fishmommie; 10-14-2012 at 02:57 PM.
    30 g FW planted:corys, female ABNP, blue angel, harleys, zebra danios, rummies,
    15 g FW planted:2 male guppies, neons, pygmy corys, clown pleco, 4 types of shrimp, assassin snails
    90 Gal Journal:
    fishless cycling:
    fish in cycling:

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