Diy Co2 Generators

[shahdi]

im thinking of starting a planted aquarium. and thinking of making a diy ci2 generator. thinking of the yeast based one. does anyone have any plans on how to build one.
thanks

 

[Fwapp]

A very good guide to here.

When it comes to the yeast recipe, try a search for CO2 recipes in this section and the planted section.

Hope this helps!

 

[shahdi]

thanks for the reply... but the link doesnt work..
does anybody else have a diy co2 generator plan?

 

[martin_jones]

http/www.fishforever.co.uk/carbondioxide.html

Martin

PS: I have a slightly modified version of this. I have used an Algarde 3-way gang valve which allows three pop bottles to provide CO2 to one line. When I need to replace a bottle, I simply turn of that particular valve and remove the bottle, retaining the pressure in the system. When a new bottle is added, there is a slight drop in pressure as the new bottle gets up to pressure, but it all seems to work quite well

 

[shahdi]

thanks for the site.
question how does the co2 go from the bottle to the tank? im confused does it use a air pump or something?

 

[callum_parsons]

in the latest issues of pfk it has a description of how to set one up it seems quite cheap and effective looks very easy to do as well

 

[shahdi]

i live in australia and the we only up to the july issue of pfk. i still buy pfk even though its a UK magazine. got heaps of info.

 

[Fwapp]

thanks for the reply... but the link doesnt work..
does anybody else have a diy co2 generator plan?

? AArghh! It was working the other day, I was looking at it! Oh well, at least you got the info you needed, sorry about that!

 

[shahdi]

thanks all.

but how does the co2 go from the bottles to the tank??? does it use a air pump or something.

 

[hoarp001]

The yeast and sugar ferments (turns the sugar into alchohol (thats why it smells like beer)) which prdouces Co2 and foam. The foam is killed off by the 'stabilzer' or bicarbonate of soda. When you open a can of beer the fizz you get is the Co2 generated during fermentation. In the soda bottle or whatever you are using as a fementor the pressure rises and the gas is pushed out of the top of the bottle down the hose into the tank. There is no pumping or electrics involved, it works on air pressure (or Co2 pressure alone) Thats why the nutrafin kits are so cheap - They are a plastic bottle, some hose and a mass produced plastic laddar thingy.

Some fermentation based Co2 systems do use a pump at the top, but this is to diffuse the Co2 bubbles into the water, not to pump or suck the gas up from the fermentor. All it does is direct a fast flow of water over the Co2 bubble outlet.

 

[shahdi]

oh thank you for clearing that up.