I am vegging inside and flowering outside. Super tight budget so I have basically scraped dumpster dives and McGyverd everything I have going. Things are working fantastic. Now looking to improve. Tell me about adding CO2. What has been the best beneficial system used. My grow room is not sealed. Has anyone used compost in the grow room? Thinking out of the box compost is a CO2 generator. Let me know what you think. Im thinking in a bucket with leaves and kitchen waste. Needs to be simple. Looking for input.