Drop Checker Problems? - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 11-29-2011, 04:27 PM Thread Starter
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Drop Checker Problems?

Like the title says, been having some weird problems with my new drop checker. I even went out and got myself a nice Cal Aqua double checker!

Here's the issue. So, I filled up the bottom chamber with the reference solution like it states. Then I proceed to fill the upper chamber with the indicator solution. At this point, the indicator solution is a nice blue color.

When I toss it in my tank, it slowly goes to a nice lime green color over an hour or so. Like, exactly 30ppm "perfect lime green".

Only problem is, I haven't turned on the co2 yet! And it stayed that color all day, and throughout the night. Now, I'm pretty trusting of Cal Aqua, but should I be making my own 4dkh solution, or purchasing it from a trustworthy source?

I'm still not sure what's wrong, perhaps it's something weird with my water paramaters? I have moderately hard water, at 8.4 Grains of Hardness.

Any advice is appreciated on this, I would like to get my Co2 rolling ASAP and get those plants nice and perky!

-Mike
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post #2 of 6 (permalink) Old 11-29-2011, 04:52 PM
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I don't trust any 4 dKH water/indicator from a supplier of drop checkers. I just make my own with distilled water and baking soda, and use my API pH reagent. That way I know what I have.

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post #3 of 6 (permalink) Old 11-29-2011, 11:00 PM Thread Starter
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Ok, I agree with you on that. But still, you would figure that their solution is at least gonna be close. Otherwise, everyone who ever ordered one would have to make their own solution. I ain't a chemist.

Has no one else had this problem? I mean, is there any way this could happen? The tank is still newly cycling, although I dropped in a filter from an established tank to speed things up...
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post #4 of 6 (permalink) Old 11-30-2011, 01:24 AM
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Odd question, so disregard if need be. Is this a new NPT? I have no drop checker to check, but I have read that a new dirt tank will release a fair amount of Co2 from substrate breakdown for a while...maybe that is it?
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post #5 of 6 (permalink) Old 11-30-2011, 01:52 AM
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Try here to order some 4dkh solution.

https://www.plantedtank.net/forums/sp...s-10-4dkh.html
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post #6 of 6 (permalink) Old 11-30-2011, 06:58 PM Thread Starter
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I'm using the Fluval Stratum planted tank substrate. \But I can't find any evidence regarding the release of co2.

Thanks for the link tetra73, I guess that's what I will try before I set out investigating.
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