Help with my GHE areo farm setup

Hi guys,

I have a GHE areo farm setup. With 4 Seven Dwarf, Collosus plants. (auto flowering)

Please note this is a GHE aero farm NOT an aero garden. Sorry posted incorrectly previously.

Using GHE Nova nutrients and a very good quality 70W LED light 46cm x 26cm.

http://cgi.ebay.co.uk/Custom-Made-LED-Grow-Light-Highest-Possible-Quality_W0QQitemZ390281940358QQcategoryZ43555QQcmdZViewItemQQ_trksidZp4340.m263QQ_trkparmsZalgo=DLSL%2BSIC&its=I&itu=UCI%2BIA%2BUA%2BFICS%2BUFI%2BDDSIC&otn=8&pmod=390273860210%2B390273860210&po=&ps=63&clkid=6873915797950070462

Light is On 20hrs and Off 4hrs

Just wondered if anyone could answer a couple of questions I have please?


1. How do i flush my aero garden and do i have to do it every so often or only if my EC goes too high?


2. Currently I have my pump set to a 45 mins On and 15 mins Off rotation. Is this to much, should I allow more Off time , or should it be on 24/7 ?

3. How often should I change the water in the tank? (I have an air stone bubbler running 24/7)


Cheers,

Simon
 
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