Ive been doing alot of Co2 dosing research lately cause all I need to pressurize is a Co2 fill and a valve. I found that air pumps pump in the same air we breathe, figure hey its saturated with Co2 and then I started watching the plants, they grew fuller and alot greener since using the O2 pump.

every week I am at the surface, its never ending but glad I got tanks to transplant to for safe keeping till I destroy or RAOK or sell.