Skimmed that study, and it kinda echoes my experience. My yields improved when I fine-tuned the nutrient ratios, but haven't really experimented with ...

Been using CO2 for a few months now. Works fine if u tweak things right. If you’re not willing to adjust lighting and airflow too, u might end up wast...

Look, u need basic experince mate. Experiment more properly or you'll screw up. Honestly, read a guide before blowin your money.