Yup, what he said DWC is incredibly easy. All you have to have is a few 5 gal buckets some air stones, aquarium compressor, and tubing, a little hydroton and some net pots. and of course nutes and plants.
the only thing you might want to consider is hauling H20 up to the attic, you'll be surprised at how fast the plants suck up the water.
Good luck,
NH
There are some old farmers out here who started growing MJ when they couldn't make the farm work with conventional crops. For stealth they would bend the plant completely over and stake chicken wire over it (a modified version of scrog) the plant would esentially grow horizontally along the ground I haven't tried it but it seemed to be pretty successful. If height is limited you might try something like this.


Quote Originally Posted by Zandor
I would say the DWC buckets are the easy ones to build and make. You could even just use a rubbermaid tub and put some nest pots in the lid. There are a few down sides to those.

How many plants do want to grow?

Peace