Build my own Co2 system

  • We are currently upgrading MFK. thanks! -neo

CoryWM

Candiru
MFK Member
Jan 13, 2008
368
11
48
Everett, Washington
www.tankgeek.com
I can get an oxygen tank, and a regulator, that'll scale down to .12 liters per minute. I'm wondering if you can have people fill oxygen tanks with Co2, i assume if i went to a airgas or something they could. Also is the bubble counter thing needed or is it just cause the other regulars people buy, let it out in psi? If i could get this setup to work, it would only cost me the cost of the co2 fillup.
 
You will need a diffusion method, a pin valve, bubble counter and solenoid. The bubble counter is how you see what you are trying to control. The pin valve is the controller, for that control you are trying to establish. The solenoid is what controls the day night cycle. The diffusion is what gets the co2 into the water. I highly doubt that they will, or if they even can, fill an O2 tank with CO2.
 
hey dont give up on the diy co2 system. a bunch of my friends have them and they cost alot less than the pre assembled ones. you can use paintball tanks and a few other kinds like old soda fountain canisters... just keep a look out.
 
You can't fill an O2 tank with CO2.

Bubble counter is not needed. But it is highly recommended. You can make one for just about free if you really need to save the money. But all you have to do is hold the line in the tank or clear container of water to see the bubbles to set your needle valve. However you have no protection if the needle valve wasnt consistent, or gets touched, etc. unless you have a drop checker to give you an idea of the CO2 level in the aquarium. You can also do without a solenoid, but again its not reccomended, and it will save you money in co2 as it should stretch the life of you fill 1.5-3X longer. It also reduces stress on the fish at night when you dont need high co2 levels. You could do this also by using a powered reactor, that when shut off at night the co2 just bubbles to the top. Good luck.
 
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