Help me out with CO2 injection

[fasoole]

Hello Guys

at start i need to say that im not good in english so i hope u guys can understand me

i bought this Co2 system

http://www.allegro.pl/item619211571_...00_gratis.html

but to be honest i dunno know how much injection needed for my planted aquarium (Discus)

my p.H usually 7.10 but after i use some medicine i take it down to 6.5 or so


now how much i need of Co2 to make everything good for plants and discus

i have 270L = 71gallon
27 C
with some fertilizer
90watts T8
65 watts T5
thanks

[cyberhog05]

Here is a couple links with priceless information. It explains how to test your C02 level. I didnt notice a drop checker with your kit. I would get one of those and I personally wouldnt run a c02 system without a ph controller. My discus are far more important to me than my plants. Good luck

http://www.csd.net/~cgadd/aqua/art_plant_co2chart.htm
http://www.rexgrigg.com/index.html