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EC readings

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SIDEWAYS View Drop Down
Sensi Seedling
Sensi Seedling


Joined: 08 September 2009
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  Quote SIDEWAYS Quote  Post ReplyReply Direct Link To This Post Topic: EC readings
    Posted: 15 September 2009 at 16:57
Hi just wondering i grow in a small nft tank, and use a ph pen and ec stick, i mix my nutrient in a bucket then tip it into the tank,  i use sensi bloom A & B, but when i set the Ec then check it again it can change sometimes up sometimes down over the 4 day period the water is in the tank (water gets changed every 4 days and new nutrient added)  should i adjust the ec when this happens for example add more nutrient or add more water to bring it back to the ec i want.
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Ganja View Drop Down
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Joined: 13 June 2003
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  Quote Ganja Quote  Post ReplyReply Direct Link To This Post Posted: 15 September 2009 at 19:11
Yes, while making sure pH stays (or becomes) correct.

Presumably, the system is watering the plants during the four days between adjustments. The drop in EC would be the plants taking nutrient out of the water.

You might consider testing and adjusting more frequently, to try to make sure the water is at optimal EC as much as possible.
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