How many plants (later, algae) do you need to breathe? [video] (youtube.com)

A practical basement experiment from its earliest stage. He has already progressed to algae bioreactors and his target is equilibrium of O2 and CO2.

I have been wanting to see something like this. There been a few programs but not as many as I thought there would be (ex. Biosphere 2 project: https://en.wikipedia.org/wiki/Biosphere_2 ). Are there many examples with (well done) popular science descriptions?