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Old 06-27-2014, 03:24 PM   #1
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Diffusion method for DIY

Hey guys, I'm on the route to a heavy planted tank and I want co2! I plan to run 2 diy units at each end of the tank. My first diffusion method will be with the Hagen ladder. My question is the other unit at the other end of the tank is by my HOB filter, I've heard I can diffuse through the filter but how would I achieve this? Help would be appreciated
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Old 06-27-2014, 06:24 PM   #2
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Following Fresh2o ' s method I drilled a hole towards the bottom of the intake and fed the tube in, you'll want to make sure the tube is not to close to impellar or it will draw pressure/liquid from the bubble counter..

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Old 06-28-2014, 02:13 PM   #3
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Is this method illustrated somewhere? Does this method completely eliminate the need for atomizer?

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Old 06-28-2014, 02:43 PM   #4
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Ok so I'm switching over to pressurized for sure. But all I'm getting is the tank and the regulator and needle valve? Do I need a bubble counter
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Old 06-28-2014, 03:19 PM   #5
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Is this method illustrated somewhere? Does this method completely eliminate the need for atomizer?

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I Googled it too, it's pretty basic in theory.. pressurized co2 will have no issue being dispersed via diffuser.. diy will not have to punch to make it through, even if it does for a little while it will clog eventually.. using the filter impellar it will get chopped up and have more contact time with the water while it sits in the filter media.. you can also blow it through a powerhead..

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Old 06-28-2014, 09:12 PM   #6
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Ok so I'm switching over to pressurized for sure. But all I'm getting is the tank and the regulator and needle valve? Do I need a bubble counter

You don't NEED one but it is strongly recommended. Some folks can eyeball the output by looking at the size and amount of mist/bubbles coming out of a given diffuser and say "That's enough". However, to get reproducible results (and to possibly not kill your fish) it is better to use a bubble counter to adjust the output using the needle valve.
Does the regulator have a solenoid valve as well?
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Old 06-29-2014, 06:52 AM   #7
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How big is your tank?
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Old 06-29-2014, 06:41 PM   #8
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You don't NEED one but it is strongly recommended. Some folks can eyeball the output by looking at the size and amount of mist/bubbles coming out of a given diffuser and say "That's enough". However, to get reproducible results (and to possibly not kill your fish) it is better to use a bubble counter to adjust the output using the needle valve.
Does the regulator have a solenoid valve as well?

Yes I'm getting the aquatech deluxe w/ regulator solenoid and I think built in bubble counter and co2 tubing (16 ft) on a 20 lb tank. Diffuser is going to be a transparent ceramic nano.
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Old 06-29-2014, 07:21 PM   #9
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Yes I'm getting the aquatech deluxe w/ regulator solenoid and I think built in bubble counter and co2 tubing (16 ft) on a 20 lb tank. Diffuser is going to be a transparent ceramic nano.

20# tank? Wow, that will last a while. I'm about at 3 months on a 24 oz tank.
I still let the CO2 most get sucked by the HOB and dispersed. There is an additional lip on the HOB that ensures no splash when the water re-enters the tank.
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Old 06-29-2014, 08:17 PM   #10
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20# tank? Wow, that will last a while. I'm about at 3 months on a 24 oz tank.
I still let the CO2 most get sucked by the HOB and dispersed. There is an additional lip on the HOB that ensures no splash when the water re-enters the tank.

One of my buddy's work at airgas and he said he could get me one for about 30 bucks! Wow I might get a good 6+ month use on it
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