redfsh
Member
i have just started a bubble ponic grow 2-3 plants max. i have grown before but the odor is so strong. this time i have ducted my box into the attic into a 30 gal plastic tote with a fiber mesh (air filter stuff)suspended in the middle that i can pour a layer activated carbon onto then i have a lid with a hole in it and a box fan laying on top to pull air through. how much carbon should i use since its very expensive at fish stores