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Grittyville, WA

So is that about 2lbs of calcium nitrate? I'm not very good at calculations... Testing myself here.

6/16/2026 7:13:32 PM

Ontario

Uhhhh...
It was 7 cups, idk what that is in lbs, maybe 1 per tank? All I know is I definitely need to get a bulk bag next time because my 5 lbs bag is going to be gone...

6/16/2026 7:34:59 PM

Grittyville, WA

Sounds about right. So you are using a target EC and then bringing up the amount of fertilizer up to meet the target? Just curious about your method because I need to develop my own method... I can't keep guessing lol.

6/17/2026 2:52:25 AM

Ontario

For the boron and manganese I dissolved in 10L 100 ppm, and 200 ppm, then diluted that into the tank, for larger amounts, such as the calcium nitrate, i dissolved 1 Tbsp into 10L, see how much it changes, do the math of "i need to do 100× more colume" and calculate from there to get a rough estimate

6/17/2026 5:15:39 AM