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post #1 of 5 Old 03-26-2015, 06:40 AM Thread Starter
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Co2 setup

I'm ready to take the next and daunting step in my aquatic adventures. My tank is not overly planted but has enough plants to require some supplementary CO2.

I have a tmc aquagro hobby set. I also have purchased a drop checker and 4dkh fluid. The drop checker is in my tank and after 1.5 hours it is still showing blue. I just need a solenoid so as to only run CO2 during the day as plants only use CO2 of a daytime, plus it doubles the duration of my CO2 canister.

My question is where is best to position the diffuser in my tank? Do I put it near my filter or away from my filter?

Ps. Any other advice will be greatly appreciated.

Whoodst that my steed hath the speed of your tongue.

Jon
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post #2 of 5 Old 03-26-2015, 01:56 PM
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I would place the diffuser closer to the substrate. If you have a powerhead, make sure it blows the bubbles produced by diffuser to maximize contact time with water. Some people use the intake of the canister filter to suck the bubbles and chop them further into the canister although doing that might damage the impeller and make the canister noisy. An HOB filter is not recommended since it agitates water surface speeding up CO2 loss.
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post #3 of 5 Old 03-27-2015, 04:00 AM Thread Starter
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Ok so if I place my diffuser near my substrate and the opposite side to my filter intake I should get a better and longer lasting effect from the Co2. Should I have my drop checker near to or furthest away from my diffuser?

Whoodst that my steed hath the speed of your tongue.

Jon
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post #4 of 5 Old 03-27-2015, 08:40 AM
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The drop checker should measure the dissolved CO2 and should be placed away from the diffuser as you don't want actual CO2 bubbles to enter the airspace and give you false high readings.

Two-three inches below the water surface allows for periodically checking the accuracy since the color will change blue during the water changes when the checker is dry
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post #5 of 5 Old 03-28-2015, 09:44 AM Thread Starter
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Ok diffuser opposite side of the tank to the bubble counter. Bubble counter at 1 BPS ( bloody hard to adjust its either 1-2 BPS 1 bubble every 4 seconds). Drop checker initialy blue (24 hours in tank).
Let's see how it goes.

Whoodst that my steed hath the speed of your tongue.

Jon
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