Co2 for 48" 120g
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Old 09-05-2014, 02:30 AM   #1
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Co2 for 48" 120g

I already have a 20lb co2 tank and am working on getting a regulator. I need help figuring out how I get the co2 in the water. I'm hearing that diffusers won't work in a tank this big and that I'll have to go with a reactor. I know nothing about!

Btw, I use a canister filter.
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Old 09-05-2014, 04:04 AM   #2
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I say use an inline atomic difuser im getting one for mine. I would recomend the gla one or if you want to go cheaper try the up aqua or ista max mix reactor.
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Old 09-05-2014, 12:27 PM   #3
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If you can go with two inlinea atomic reactors, if you have two canister filters, I would do that instead. One alone might take a long time to get the co2 ppm where you want it. I've got two inline on my 125g and it works well. A reactor is also a good idea, but making one the right size, with the right flow, so you don't get bubbles burping out, can be a PITA IME.
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Old 09-05-2014, 12:38 PM   #4
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Definitely make a reactor. I use the following on one of my EHEIM 2217:
Get a 20"+ housing if you make a cerges. Mine works perfectly and no bubbles come out. Bubbles in the 2nd pic are from when I initially turned it on - not from CO2. IMO it is certainly worth the time to make a reactor that works right. Mine cost probably $60 for everything. Reactors are less maintenance in the long run too.

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