General Hydroponics Suggestions

[Roomba]

Combine that with soil you can lay on the ground and till to grow other crops on. Let's get all community garden up here

Oh man I want this now. Spray soil all over the corridor, frustrate the shit out of the janitor, grow weed all over the place.

(or lashers)

Also you can already grow fruit with blood in it - blood oranges. It's fancy blood, to boot.

Plus it's not really like blood is all that difficult to get. Stab a monkey and scoop it up, smoke it and scoop it up, etc.