I like the basic method but I would ask for some changes.
I find for growing hydroponically in large scale productions the best results came from drip irrigating the crop.
Aeration of the water was not as effective as less water mostly for weight and spraying the roots with a fine mist.
This gave us the most root hairs and the greatest production for square foot of space used.
We used little giant pumps submersible regulated to the correct PSI of the drip emitters and spray heads Netafim
we also had all our buckets go back to a central tank. It was a very effective way to grow.
from the voices in my head
Ethan