help with drop checker fluid - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 07-02-2014, 08:14 AM Thread Starter
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help with drop checker fluid

Can anyone tell me about the fluid used in a drop checker , and how to use it? I have a new co2 setup , and I need to get my drop checker up and going. I need the simplest way for the drop checker/fluid.
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post #2 of 10 (permalink) Old 07-02-2014, 12:32 PM
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The fluid is water with a dKH of 4 and enough Bromothymol blue to color the water.

If your drop checker did not come with 4 dKH solution you can make it yourself if you have a KH test kit. It's more accurate if you make a large amount of 16 dKH water. Use distilled water and add enough baking soda (not powder) to raise KH to 16. Then add 3 parts distilled water to one part of the 16 dKH water.

Put that fluid in your drop checker and add Bromothymol blue to color the water enough that you can see the changes. The Bromothymol blue is the solution you use to check you PH.
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post #3 of 10 (permalink) Old 07-02-2014, 01:10 PM Thread Starter
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Test kit

What is an accurate brand for the kh test kit
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post #4 of 10 (permalink) Old 07-02-2014, 07:43 PM
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I buy Fluval CO2 Indicator Solution from Amazon. It is a little expensive tho., around $20/bottle. Just be aware that a drop checker reacts very slowly, and does not give a very accurate indication of your PH, or CO2 level.
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post #5 of 10 (permalink) Old 07-02-2014, 07:45 PM Thread Starter
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drop checker

Then why use one ?
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post #6 of 10 (permalink) Old 07-02-2014, 09:38 PM
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Quote:
Originally Posted by rick dale View Post
Then why use one ?
To be honest about it, I don't have a good answer to that in a tank with fish. I use one in a plant "grow out" tank where I keep a very high level of CO2. There is no livestock in the tank to be hurt by the high level so I use a drop checker to see if I need to replenish the CO2 mix. I use a PH controller in the CO2 pressurized display tank, no drop checker.
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post #7 of 10 (permalink) Old 07-02-2014, 10:10 PM
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I put one in my tank 2 days ago. Its pretty simple, fill the bubble 3/4 of the way up with fluid and give it a few hours to turn green. I had to turn mine up a lot higher than I thought with my atomizer to get a color change.
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post #8 of 10 (permalink) Old 07-02-2014, 11:13 PM
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Quote:
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Then why use one ?
The only reason I have one is to alert me of HUGE swings like when the tank runs out. I call it my "canary" like miners used to use. That's about all the're good for IMO.
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post #9 of 10 (permalink) Old 07-02-2014, 11:41 PM
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What is a pH controller?
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post #10 of 10 (permalink) Old 07-03-2014, 01:05 AM
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Quote:
Originally Posted by rick dale View Post
Then why use one ?
A drop checker serves as a quick visual check of your CO2 levels inside the aquarium. It is also cheap.

However, as mentioned, the disadvantage is that it does take some time to react to changes.

Quote:
Originally Posted by Kntry View Post
What is a pH controller?
A pH controller is essentially a microcontroller that measures the pH of your aquarium and then depending on the pH setpoints, will either provide or cut power to a solenoid, which in turn, turns on or off your CO2, respectively.

Through the injection of CO2, your pH can be adjusted, hence 'pH controller.'

Anthony


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