[farmjohnny]

It’s hard to tell from the pic, but do you have several nice big drain holes in the bottom of your Solo cup?

I use Ocean Forest in my Solo cups, then into Promix HP. It helps eliminate the over/under feeding during those first couple weeks before transplant.

 

[farmjohnny]

I shoot for .8 to 1.2 in Veg and 1.2 to 1.5 in Flower.

Lots of variables so just get your kPa swings in these ranges and you will be close.

[farmjohnny]

Here in Minnesota it’s about 50/50 so I learned to always ask. My grow shops mostly use 700.

Maybe put a conversion chart (EC -500-700) in the next revision? I keep one taped to the wall.

I lived out your way for many a moon (Blue Diamond). The Valley just got too crowded so I moved up here.

[Author]

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