Drop Checker not working - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 02-01-2010, 01:43 AM Thread Starter
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Drop Checker not working

Hey Guys, I have a nano drop checker from Green leaf, along with their 4dkh solution, and indicator solution.

I add a lil 4dkh solution and then add a few drops of the blue indicator solution but the color never gets very dark blue. Its so light it looks clear. I emptied and tried it again this time adding like 6 drops and still it was very light blue, put it in the tank and it looks clear.

Im adding enough to fill the bulb about 1/2 way

Anybody know what is wrong, or if Im doing something wrong?
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post #2 of 6 (permalink) Old 02-01-2010, 02:32 AM
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Did you shake the reagent?


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post #3 of 6 (permalink) Old 02-01-2010, 02:36 AM Thread Starter
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Hey Mark, yeah I gave them a good shake before adding them
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post #4 of 6 (permalink) Old 02-01-2010, 02:59 AM
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DARK blue is low co2. it should stay around a nice green.
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post #5 of 6 (permalink) Old 02-05-2010, 02:29 AM
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I made the same mistake when I got my first drop checker.... I kept cranking the CO2 because it was clear/yellow/ very very light green. Dark blue means your CO2 is very low. I myself, confused the readings. The + and - on the checker messed me up. When I saw the + on the yellow chart, I thought it meant, +=add more CO2. haha

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post #6 of 6 (permalink) Old 02-05-2010, 05:18 AM
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Quote:
Originally Posted by accordztech View Post
DARK blue is low co2. it should stay around a nice green.
Quote:
Originally Posted by Dempsey View Post
I made the same mistake when I got my first drop checker.... I kept cranking the CO2 because it was clear/yellow/ very very light green. Dark blue means your CO2 is very low. I myself, confused the readings. The + and - on the checker messed me up. When I saw the + on the yellow chart, I thought it meant, +=add more CO2. haha

He is saying that when he adds the test regent drops to the solution that it does not turn very blue. Like it should.

The problem starts before it gets in the tank.

OP ----

I would test the 4dkh solution they provided with your test kit. And if it test good, then I would use the PH test regent that come with your test kit. Provided you have a master test kit on hand.
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