wow impressive room man....looks super clean. got any pics before it was filled up with plants?
They drink a little over 300 litres / 80 gallons every 2 days. I manually refill every 2 days. I don't like the idea of a float valve because I want to be able to see exactly what's happening in the res. EC and PH would always be changing from the fresh water, and it would be harder to see what the plants are doing. When I come back I want to see what they've done with the water they have, how the plants themselves have changed the EC/PH.
This isn't like a UC system though, the water level in the plant containers stays constant all the time, even as the res drops.
Looks like Phosphoload/Flower Dragon.