@FelipeBlu - here is a pic of thw nutes along with the total of ppms after each addition
Wow 440ppm of Cal/Mag. That must be the trouble maker. As
@PlanetJ said 1600ppm even in EU scale (2.5EC) is pretty damn high. But your pen/meter is 0.5 hannah scale, right?
If you using RO, distilled or soft tap water just add Cal/Mag until you reach 0.4EC = 200ppm. Its the recommended water hardness for hydro cultivation. Top with additional Magnesium supplements only (like Epsom) if plants lacking Magnesium. Do not add anymore Cal/Mag to fix any Mg related issues. ~200ppm of Cal/Mag provides enough Calcium. And more than that, it quickly turns so Calcium blocks other nutrients uptake.
You could split the list in half. Like about 300ppm of Grow & 270ppm of Bloom would be enough w/e is the NPK ratio. So thats getting close to 600ppm already. And if youve prepared your water with Cal/Mag theres a 200ppm ”base” - which would be then about 800ppm / 1.6EC total. Then rest of the beneficials and youre already close to 1000ppm.
As buds are still growing not ripening yet, I’d bounce between 800-950ppm - maybe even lower to keep the nutrition in balance to make sure the buds grow well. When you start to ripen them you could bump P&K (Phosphorus and Potassiun) up for a bit. It is not necessary to raise phosphorus over ~60ppm, but shes a big girl she could later benefit from little extra P.
E: Felipe got you covered with the exact amounts. But I understood this your Bloom or Grow nutrient already provides a source of Ca(?)
If youre getting +100ppm of Ca without Cal/Mag supplements, then you could ditch the whole CalMag bottle. Since looks like you do have a Magnesium source (Epsom) as well.
It’s the CalMag - which is not in my initial mix recommendation - that is definitely causing the elevated ppm and likely causing issues with K uptake.
The mix I recommended:
10.4 ml/gal Grow
13.3 ml/gal Bloom
1g/gal Epsom
provides:
191 ppm K
117 ppm Ca
As mentioned before that Ca is the worst in excess amounts.
Ca has a big role to do, for example carry other nutrients, and plants under strong LED lights can consume more Calcium. But finding a sweet spot low as possible is the way to go -To avoid calcium antagonism with other nutrients, but still providing enough so plant function properly.