Sea of Green

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6” rockwool cubes ive never been able to grow the best weed using soil.
So you just leave the 6” cubes in water to collet what they need? I haven't seen this yet…I I imagine the roots eventually find their way to the pan and go crazy right?
 
The cubes sit in a tray. The tops of the cubes have 1/4” drip lines and get watered from a 55gal 3 times a day when the lights are on. They drain into the tray and outdoors to my grass/gardens.

But yes you can flood and drain from a reservoir and let them drink what they need. That might be easier. But they do cross contaminate easier that way so I much prefer drain to waste.
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