DIY CO2 -> Powerhead (running in reverse) -> UGJ System - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 07-01-2005, 06:24 PM Thread Starter
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DIY CO2 -> Powerhead (running in reverse) -> UGJ System

I have seen Under Gravel Jet systems used many times in cichlid tanks, and was wondering if I could use something like this in a planted tank to help disolve CO2 in the water.

I'm currently in the planning stages of a planted tank, and was thinking of the following in my setup setup:

UGJ system
DIY CO2 running to the venturi on the powerhead of the UGJ system

So, the main question is: is an UGJ system flat out of the question for a planted tank, and if not, would the extra time the CO2 remains in contact with the water as it travels through the UGJ system worth the effort?

Thanks for any help you guys can provide.

Andy
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post #2 of 3 (permalink) Old 07-01-2005, 06:36 PM
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This might work well if the co2 is completely dissolved before it gets pushed out the jets. You'd need a co2 reactor to dissolve the co2 first, then use the jet manifold for disspersion. If you don't dissolve the co2 first you'll simply be blowing co2 bubbles out the tank. I've not seen anyone do this yet, but its been talked about here a few times.

Marcel
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post #3 of 3 (permalink) Old 07-01-2005, 06:51 PM Thread Starter
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re: co2 reactor

Quote:
Originally Posted by m.lemay
You'd need a co2 reactor to dissolve the co2 first, then use the jet manifold for disspersion.
I'm attempting to do this in the hopes of avoiding building a reactor. Forgive me if I'm wrong here (my ignorance is most likely going to show here), but isn't the point of a CO2 reactor to allow the CO2 to be in contact with the water for a longer period of time, to allow it enough time to disolve in the water? If I allowed 4' of pvc tubing before the 1st outlet, would this not be long enough to disolve a large ammount of CO2? Wouldn't the powerhead's impeller also serve to "chop up" (for lack of a better term) the CO2 bubbles, increasing surface area?

I do truly thank you for your help.

Andy

Last edited by Andy Somnifac; 07-01-2005 at 09:36 PM.
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