The 100 n other Science Fiction Grow Tech

TV show The 100 has a hydroponic farm, underground, under lights.  I -think- the problem is they have no nutrients but they keep using terms that better relate to soil growing.  So the solution in the TV show is to grow algae and feed the algae to the plants.  Evidently, while they have virtually no living plants they do have a single batch of algae.  Does this make sense at all?

Seems to me they have like 1000 people and lots of folk die in their criminal justice system.  I would think they could just sort of compost human bodies and waste products.  If they wanted to stick to the hydroponic set up, they could use compost tea.
 
On another SF show, Stargate Universe, they depicted hydroponics where the plants rotated vertically around the light source.  Looked into that one and evidently it exists.
 
So am wondering, what do you think the future of food production is?  Hydroponics, Aquaponics, something else?

http://stargate.wikia.com/wiki/Hydroponics_lab

Well - I think you may be a little too knowledgeable for their hand waving to fool you - it is, after all, designed as an entertainment program, employing 'hydroponics' as a thematic element to give things a space/future flavor. I think it's fun to think about this kind of thing sometimes, too. There was a movie with Hugh Jackman that had him in a spaceship that was a bubble with a tree and some land inside, the movie was called the fountain. I think that'd be really neat if we were out in space using plants to help sustain atmosphere and food needs.
 
Oh man I'm thinking about all kinds of sci fi books I've read and where these elements have come up. I think with literature that it's a lot less forced and fake to include something like that, because they aren't scrambling to come up with a visual representation of it within the context of the presentation. With books, you describe how it operates within the scene and the relationships can be much more complex while still being accessible to the reader/viewer/whatever. I am struggling to remember, I believe the book was called 'gridlinked' but there was a ship of rasta guys who grew plants, and they described a whole thing where they had a society made in a flotilla of ships that had some greenhouse ships and like they were self sufficient. Well anyways that's some examples of other places to see it, but I don't think that's what you were really asking. 
 
I think it would be really cool to see hydroponics, and I believe this is a hoax but I'd love to see something like this in the future.

That hydro thing where they rotate around the light is called a volksgarden I'm pretty sure

And they couldn't compost the people they ejected into space on the 100 lol

Aquaponics is big in Europe, especially in the UK, their even converting abandoned stores and warehouses.