"Rick" schreef in bericht
news:TnDGb.816669$pl3.795256@pd7tw3no...
snip

dosing ferts is dependent on a number of things, probably most importantly
is how much light are you using. If you have a low light tank, low light
plants then CO2 is not going to help much and fets, whether dry dosed or
PMDD stuff will increase your algae as the plants don't grown fast enough
to
use it up. If you have high light, fast growing plants then the increased
need for CO2 and fertilizers. A DIY CO2 system costs next to nothing
depending on what you use. It can be a couple of 2 liter bottles, some
airline tubing , yeast, sugar and a bit of baking soda. I still use DIY on
a
33g tank but changed to a compressed system for my 77g.

Well going on the levels of my PH & KH, i have only around 1 ppm of CO2
in my aquarium so i will be making a DIY CO2 system.
Is such a compressed system expensive?