I grow in a hot water tank cupboard (Possible a UK thing?) I've played with just about everything you can do in a small space in my 8 years of indoor growing...
My goal was always to build a DIY carbon filter... I've tried them all! Seriously! They don't work
OK... Actually, they do work... with shite lighting! Any decent plant will overwhelm the above DIY filter within an hour
I'm sorry to be the bearer of sad news but, any decent plant can not be filtered with a PC fan as you show! My 5" Rhino pro would fail with that fan....!
However, I am the eternal optimist
Show me the fully grown plants rather than some pots & I'll merrily discuss things more
What COBs are you using?
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