I´m using organic grow and bloom nutrients with the numbers for: grow 2-1-6, Bloom 0-5-4. At the first visual signs of blooming I´ll start with a bloom enhancer with the numbers PK-13-14, and after that I change the numbers to PK9-18.

Frequentie of watering is when I decide they need water, normally that´s about every other day. CO2 level is not important... Lumen intencity is 2x 600 watt that´s with my bulbs about 180.000 lumen on 1.5 square meters.

O yeah.. I grow on a low nutrient soil with about 10 percent perlite.