Need advice on CO2


Junior Poster
Jan 10, 2007
I am pondering my CO2 setup. I have been doing a DIY CO2 for a while with mixed results. I want to get something more consistent for a budget price, so Compressed CO2 is out.

Currently I have 2 - 2 litre juice bottles with a sugar yeast mixture that dumps the co2 into a jungle labs fizz factory chamber inside the tank, just above the spray bar. I'm not happy with how often I have to change the bottles and how inconsistent the co2 is.

I am considering buying 2 Hagen Nutrafin CO2 natural setups and placing 1 at each end of the tank (it's a 29G). Once I have run out of refils I can use a diy mixture or buy new packets.

So, is my money best spent on the 2 systems or should I invest in a better reactor and keep the DIY bottles and maybe try a new mixture?

the mix I use now is 1/2 tsp of Yeast, 2 cups sugar.


Tom Barr

Staff member
Jan 23, 2005
See the internal CO2 reactor DIY post I put up, that will get the most out of the yeast method.

Plug the powerhead into the light timer from there.
Cost about 2$ then whatever the cost of the powerhead(8-12$ in the USA).

Tom Barr