Im new so i've a question, i've 2 growbox and one in construction.. my question is:
The extractor fan need to run 24/7 during the vegetative phase of the plant? Is that really necessary?
No it isn’t necessery but an air excange/hour at least in my opinion is better to do it. You can run at 1/3 of the power or with a mechanical timer 15 min every hour/hour and a half. Hope to be useful, sorry for my bad english