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i have 2 NFT troughs on the go so i hear wot ur saying.
NFT is rockwool sitting on spreader mat that the roots grow into then that is kept wet. the roots have water on 1 side and air on the other giving them all the air and water they need.
thats the theroy. in realaty its a very had system to get running at 100%. 80% is easy tho and thats an amazing amount better than soil.
the problem is keeping the water level low enough. normaly ther is to much water in the trough thats y my pumps r on a timer. they run for 15mins then off for 75mins, (15min timers) as the plants get bigger they will be taken down to 15mins on 15mins off in stages. this lets the roots get max air and helps root growth
with aeroponics the roots r held in air and misted, ther by getting rid of all the drawbacks of NFT which in its self is an amazing system.
the system i was thinking of building holds the stem of the plant and all roots hang in the mist. a lot more clomplecated than the aero cloner i built.
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