dude, In my opinion, if you are gonna go with ebb and flow you should reap all the benefits that come with using that system. I don't like those systems because, like an aeroponics system you are restricted on where you can put your plants and how man plants you can have. By using a tray, you can freely move the plants around and if you wanna add an extra plant or two you can
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For that amount of money you can put something together yourself, with great ease.