back in the 80s I went to school for electronics for the digital part we had to build a car horn that worked , I made a ice cream truck sounding horn ,on hot days I would blow the horn on one block then go over 2 blocks and hit it again had the wee ones running all over hell looking for the truck ,evil bastard that I am lol.
I thought about using super soil but didn't think it wouldn't go the grow so I decided on coco, could do 8 plants and feed them a bunch of times a day ,hmmm maybe a sea of green nope that wont work to many to feed