I won't be able to say until I see how much carbon I stuff in it. I'm not currently planning on having more than 10 plants flowering at a time, and I think this filter will work beautifully for them. Only way I have more than 10 girls is if my basement is cleared out, and can be sectioned off for extra flowering. Thanks for the props, I'll have the carbon in a few days, then I can let ya know how well it works.