Ok to the questions.Yes you can hook 2 or more together and use 1 pump.You have ro recreate the manifolds inside with s 90 degree elbow on 1 of the end caps then run a piecec of pvc pipe up high,then another 90 degree elbow through a hold in the tub running to the next tub and into that system. Youd have to add a drain in the second tube and run a line back to the tub with the pump and have that pump tub few inches lower so gravity can be used to refeed water back in.

Second yes you can use this seetup from day 1 til finish.I reccomend indicas that saty shorter and topping the plants even lillipoping is a great idea here.I grow in my larger 28 site aerosetup from start to finish. I take my 5 day old rooted clones pop them in to the aero build for 10-12 days then flower 5 weeks take first top harvest then trim back and let smaller buds mature for 2 weeks and done. Heres a link to that setups grow.I did a how to build this unit also... Ok the First Aero grow journel take 1...