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Pressurized CO2 Questions

2559 Views 17 Replies 10 Participants Last post by  Left C
I am in the process of purchasing the following equipment from Aquariumplants.com, please let me know if I am missing any required items for a new pressurized CO2 setup.

1) Aluminum Co2 Cylinders 10lbs filled ($99)
2) Milwaukee Co2 MA957 Regulator Set ($87)
3) Aqua Medic CO2 Reactor 100 ($13)
4) Co2 Resistant Tubing 10' length ($7)
5) Seachem pH Alert ($5)

I currently have a powerhead that I will use to disperse CO2 bubbles from the reactor. I also have a power center that will turn off solenoid valve when my lights are off. I am doing this on a budget so any suggestions are greatly appreciated.
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1) I bought my filled CO2 cylinders from my local welding supply company. I just swap them out when they are empty. I get aluminum cylinders sometimes and sometimes I get steel ones. It really doesn't matter. They're inside the wooden stands. I don't have to worry about getting them pressure checked either. I didn't have to pay for shipping either.

2) I wouldn't get the Milwaukee regulator. There's been many QC issues over the past few years. There's been good ones as well as bad ones. Get "The Best" regulator or one from Rex Grigg. Aqua Botanic has "The Ultimate" regulator. I forgot to mention the Azoo regulator. I have two and I haven't had any trouble with them.

4) Their CO2 tubing is that crappy blue silicone tubing that you can buy much cheaper anywhere. Get good CO2 tubing from somewhere else like Rex Grigg, Marine Depot, Tygon Lab from US Plastics, Aqua Botanic, etc.
Check out the leaky silicon CO2 tubing: http://www.coleparmer.com/techinfo/...E,C&htmlfile=SelectingTubing.htm&Title=Search

You need a brass check valve. The Milwaukee doesn't have one on it's bubble counter like the JBJ regulator has. "The Best" does. I add another brass check valve in line for extra safety. Again Rex Grigg, Aqua Botanic, etc.
I have the milwaukee regulator and Im happy with mine. Although it came with a defected solenoid but I called them up and they sent me another one for free
u can buy a 10 pound tank at ur local welding stores for alot less or go on ebay or another site , im sure u can get one for 40-60 bucks...I did
http://cgi.ebay.com/Milwaukee-MA957...6QQihZ018QQcategoryZ66794QQrdZ1QQcmdZViewItem

I got my milwaukee from him for 78 bucks hes a good buyer
u can buy a 10 pound tank at ur local welding stores for alot less or go on ebay or another site , im sure u can get one for 40-60 bucks...I did
I have called around (in atlanta) and it seems that most local welders sell their canisters for $130 for 10lbs. filled.
1) Aluminum Co2 Cylinders 10lbs filled ($99) -- call fire extinguisher places too!
2) Milwaukee Co2 MA957 Regulator Set ($87) -- I use JBJ and Azoos and are happy with them. Those are some viable options for someone on a budget.
3) Aqua Medic CO2 Reactor 100 ($13) -- this is fine...or you can just use your powerhead without having to buy this.
4) Co2 Resistant Tubing 10' length ($7) -- what Left C said. :)
i'll second that.

I have called around (in atlanta) and it seems that most local welders sell their canisters for $130 for 10lbs. filled.
i live in the atlanta area and its hard to find a local place to get filled canisters and the places i did find were very expensive.
for co2, go to http://beveragecontrol.net/
10lbs filled for $9. it only takes a few minutes to fill it up.
(saves you $11)
i would also pick up a perma seal. i got one from rex. its not needed but you don't worry about picking up new washers everytime u get co2.
i'll second that.



i live in the atlanta area and its hard to find a local place to get filled canisters and the places i did find were very expensive.
for co2, go to http://beveragecontrol.net/
10lbs filled for $9. it only takes a few minutes to fill it up.
(saves you $11)
i would also pick up a perma seal. i got one from rex. its not needed but you don't worry about picking up new washers everytime u get co2.
Miso, where did you get your canister from?
Hey jesstray go to beveragefactory.com order a 10# tank and pricematch to aquariumplants and you will get the tank shipped for $75 sweet deal and only took 2 days to get. I also got 2 milwaukee regulators from aquacave.com with free shipping over $175, I havent had a single problem yet knock on wood :) its been 3 weeks...
1) I bought my filled CO2 cylinders from my local welding supply company. I just swap them out when they are empty. I get aluminum cylinders sometimes and sometimes I get steel ones. It really doesn't matter. They're inside the wooden stands. I don't have to worry about getting them pressure checked either. I didn't have to pay for shipping either.

2) I wouldn't get the Milwaukee regulator. There's been many QC issues over the past few years. There's been good ones as well as bad ones. Get "The Best" regulator or one from Rex Grigg. Aqua Botanic has "The Ultimate" regulator. I forgot to mention the Azoo regulator. I have two and I haven't had any trouble with them.

4) Their CO2 tubing is that crappy blue silicone tubing that you can buy much cheaper anywhere. Get good CO2 tubing from somewhere else like Rex Grigg, Marine Depot, Tygon Lab from US Plastics, Aqua Botanic, etc.
Check out the leaky silicon CO2 tubing: http://www.coleparmer.com/techinfo/...E,C&htmlfile=SelectingTubing.htm&Title=Search

You need a brass check valve. The Milwaukee doesn't have one on it's bubble counter like the JBJ regulator has. "The Best" does. I add another brass check valve in line for extra safety. Again Rex Grigg, Aqua Botanic, etc.
Yeah that!!=all the above.
i get my co2 from my local coca-cola distributor. ~$20 the first time (deposit) and ~$8 each exchange (about 9-12 months).
i get my co2 from my local coca-cola distributor. ~$20 the first time (deposit) and ~$8 each exchange (about 9-12 months).

Nice advise! Maybe I haven't looked hard enough, but this is the first time I have heard about doing that. Do you have to have a business license or anything to get setup? I already have a tank and such, but that may be really helpful to others!
nope just went in and asked for a cylinder for my fish tank. the lady kinda looked at me funny and said ok, take this around back and they'll load it for you.
Miso, where did you get your canister from?
i bought mine from ebay. it was from user aquatic-store.
i paid $86 shipped for it.
I am in the process of purchasing...equipment...for a new pressurized CO2 setup....
Hi Jesstray

I forgot to mention this. You need to add a drop checker/CO2 indicator and make or buy a known dKH carbonate buffer solution to your list. I've seen it for sale in 4 dKH and 5 dKH solutions. 4 dKH is the most used, I believe. There's also 'strong' known carbonate solutions available so that you can dilute to make the dKH solution that you want.
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