Co2 into a sunsun

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Abiduwhabi

Aquarium Advice Activist
Joined
Oct 12, 2013
Messages
148
Location
Kentucky
Hello all,

So, i have a sunsun 403b that I'm running on one of my planted tanks. I've decided to give pressurized co2 a go on this tank. It's a 20# co2 tank with the premium aquatek reg.

Now, my question is can I just run the co2 tube into the sunsun intake tube, or should I be looking at another way to inject it?

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I disperse co2 into my tanks through powerheads. I feed it into the venturi inlet. The impeller chops it up very fine, and the PH shoots it into the tank. I have found this is the most effective way for me.
 
I used to feed my co2 into the intake of my filter. The noise created by the bubbles hitting the impeller drove me nuts, and I would think a power head would be just as loud. Then someone made the comment how corrosive co2 is over time, so to save my filter as much as I could, I went with an inline diffuser on my outflow line. It's silent and very effective.
 
I have a diffuser hooked up underneath the intake to my canister filter. The tiny bubbles from the diffuser makes it so the impeller doesn't have to chop up the big bubbles giving a silent operation.
 
I started to go with in-line diffusing then decided I would enjoy watching the fine mist of bubbles coming from the ceramic diffuser in the tank. I have it mounted where most of them get sucked into the intake of my canister. For me the CO2 distribution has been excellent. Just one bubble per second for a 29 gallon tank is enough to change the drop checker to the optimum green color. Admittedly not as efficient as in-line diffusing.
OS.
 
The only concern I would have is since the impeller is on top of the canister it could become air locked but you would have to be pushing quiet a bit of co2
 
I have my CO2 diffusing into a Fluval 206 canister at a rate of one bubble per second. That small amount of bubbles has never cause the filter to make any noise or bubble in anyway. I could not consider an in-line diffuser because I already have a UV sterilizer spliced in to the return line. I am using a GLA atomic ceramic 55 mm diffuser. I am liking it very well. OS.
 
What size tank is this? People have done this before without much of a problem, but it might be a problem if you're injecting too much into it.

Is there a reason you're wanting to avoid more conventional methods?
 
It's a 55 gallon, just wanting to check all my options.

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You could always build yourself a co2 reactor I did didn't cost me anymore then 25 30 dollars and you get 99 to 100% dissolved co2 no waste.
 
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