Help understanding my fert

If my Fert say recommended EC of 1.2 to 1.5 does that mean my ppm will be the min of 600 max of 750?
So when i first start out feeding I should be at the 600 and work up from there ?

Our stores are worthless for info in hydro/DWC , They say ppm's should not be higher than 400 but if im understanding what I'm seeing thats a flat out lie.

Thanks for the great info . The response is overwhelming.

Greenhorn gardner. said:

Thanks for the great info . The response is overwhelming.

Click to expand...

Patience my friend... I understand your frustration, but the asshole-ish sarcasm wont help get replies from my experience...

Anyway, I think another reason you're not getting replies is that you are correct. 400 max ppm sounds ridiculous, but it could be what is recommended to start, as you want to start with half strength when trying new products. Once the plant gets used to it, you should ramp it up to the 600-750 as the bottle recommends.