03-10-2006, 01:53 PM
Join Date: Dec 2005
iTrader Positive Rating: 100%
I would definately go with the hagen ladder. I've used it in the past with my own DIY mix and it brings the CO2 levels to a good level without much effort.
I never used the other system, but it looks to be basically the same, but throws out a CO2 mist of bubbles instead. For the price of this system, it ain't too bad since you get a small powerhead to go with it.
I would also recommend trying DIY on a glass diffuser or sweetwater type stone, from aquaticeco.com.