CO2 System? - The Planted Tank Forum
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post #1 of 7 (permalink) Old 06-25-2010, 07:05 PM Thread Starter
Algae Grower
Join Date: Jun 2010
Location: Poulsbo, Washington
Posts: 13
CO2 System?

Whoaaa, these things are expensive. Is there something I don't know? I see that a lot of people on here are using pressurized CO2 in their tanks, but are you all shelling out the $300+ to get all the equipment? Is it cheaper just to buy all these parts on your own, and use a paint-ball canister or something?
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post #2 of 7 (permalink) Old 06-25-2010, 07:21 PM
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Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 10,183
It is definitely cheaper to buy the parts separately, especially if you bargain hunt for the best prices. You may be able to get as cheap as $150 if you do this.

A paintball canister system, while may seem cheap initially, will quickly add up, as you start spending money on replacing the cartridges every month or so.


A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
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post #3 of 7 (permalink) Old 06-25-2010, 07:23 PM
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Join Date: Dec 2005
Location: TN
Posts: 2,920
You can get a Milwaukee or Azoo regulator complete with solenoid and needle valve along with a 5lb tank for under $150. Then you just need some tubing and a method to dissolve the CO2 such as a glass diffuser, inline diffsuer, reactor or powerhead with a needle wheel typ mod. You can find decent glass diffusers for under $40, a DIY reactor would probably run around $30 for parts as would a powerhead. If you're using a canister filter you can always give a shot at using it as a reactor also.
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post #4 of 7 (permalink) Old 06-25-2010, 07:38 PM
Planted Tank Guru
Join Date: Jul 2008
Location: East Lansing, MI, USA
Posts: 2,710
Some people have money and some have time.
Patience is the important part. Luck sure helps too.
One consideration is where you live. Is Poulsbo anywhere near a Craig's list city? If so, use the search feature on the for sale section and search daily for CO2 until you find a tank that will fit in the space you have. Looks isn't as important to me as the price, but I lucked into an aluminum tank that ended up costing a ridiculously low amount.

As for the rest of it, careful shopping which is easier after you know what you are doing, can provide bargains.

Dr.s Foster & Smith is selling a regulator, needle valve, and solenoid for $79.99 currently.

This unit is $116.99 but it includes everything except the tank.

Good luck and good shopping. is offline  
post #5 of 7 (permalink) Old 06-25-2010, 11:57 PM Thread Starter
Algae Grower
Join Date: Jun 2010
Location: Poulsbo, Washington
Posts: 13
Thanks everyone, seems like theres some pretty affordable deals out there. Good links too.
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post #6 of 7 (permalink) Old 06-26-2010, 03:08 AM
Wannabe Guru
Join Date: Sep 2009
Location: Chattanooga TN
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i got a used gla regulator of SnS and a 10 lb co2 tank for 160.
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post #7 of 7 (permalink) Old 06-26-2010, 03:30 AM
Planted Member
Join Date: May 2008
Location: Baltimore
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Give this thread a good read. Everything you'll ever need to know.

Originally Posted by Tom Barr
Do, then talk about it.
No do? No talk!!
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co2, diy, planted, pressurized co2, system

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