Frank Mamone wrote:

I just started my first planted tank. I have a standard Hagen 25W kit with
the standard 24 inch Aqua-Glo fluorescent.

My PH is 7.6 and need to lower it for the fish anyways.

I am debating whether to add CO2? What do you think? I know about the DYI
ones but looking at the Hagen Plant-Gro :

http://www.mops.on.ca/cgi-bin/SoftCa....asp?E+scstore

I'm also wondering if I can use this unit as reactor or use my own mixture.

It is a DIY system in a prety box. The "activator" is yeast and the
"stabilizer" is baking soda. You supply your own sugar.

Having said this, I personally know two long-time aquarists (both 10 years +)
who love this system because of the hypnotic action of the bubbles rising up
the reactor. One bought the whole kit, one bought the reactor only, both mix up
their own yeast instead of purchasing expen$ive refill$.