Need to diy co2 3 small tanks - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 05-27-2014, 03:43 PM Thread Starter
Planted Member
PTrader: (0/0%)
Join Date: Mar 2014
Location: Somerdale, nj
Posts: 192
Need to diy co2 3 small tanks

I need a way to generate enough c02 for three small tanks without having to have 2 bottles for each tank.
I was thinking of using a big 5 gallon water jug and then doing what im doing now and t off to each tank to a small pump driven diffuser.
I really want to use pressurized and be able to do all 4 tanks together, but I'm very short on budget, I'm talking I've got maybe $10 to spend on the bottle, rubber cork and a few minor things.
chris_ranger is offline  
Sponsored Links
post #2 of 2 (permalink) Old 06-06-2014, 07:50 AM
PTrader: (0/0%)
Join Date: Jun 2014
Location: United States
Posts: 3
I use a 5 gallon glass carboy to supply C02 to my 72 gallon bowfront. I have found that it generally produces way too much C02 for my tank, but I have been able to control the rate of C02 production by keeping the temperature of the carboy at or below 60 degrees. The system should be able to generate plenty of pressure to drive the C02 through the diffuser (takes about 24-48 hours to build up enough pressure) so I wouldn't worry about having to pressurize the system. Just be careful to make sure that your line can handle the pressure and your T-junctions and at the rubber stopper on your 5 gallon jug. I use sugar and water up to 15% potential alcohol. (not sure the concentration; I have a hydrometer, they are decently cheap from brew stores).

You might find it difficult to get even flow through all four of your different hoses, especially if your diffusers have different hose lengths and are at different depths in each tank. I would be careful to try and put them at all the same level, so that the C02 does not favor a line with more favorable pressure gradient.

Be very careful about temperature. If your sugar water is brewing at too high a temperature then it will proceed rapidly through fermentation and give you too much C02 too fast, and not last very long. If I keep control of the temp, I can get the C02 to last 2 weeks, but if it gets too warm, fermentation can complete in as little as 4 or 5 days.
Plantankerous is offline  


Quick Reply

Register Now

In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome