Aerofarm Lucas Formula Problem HIGH EC!!

Hey Guys,

i got a problem with my GH Aerofarm. In my last grow i first tried using the Lucas Formula but i somehow read that FloraNova Bloom would be enough
for healthy plants. I overread the Micro Nute part. So i had 2 successful grows with only FloraNova Bloom. I always used plain tap water, which is very high around my region. (At 18,7 °C, 0,77 EC, 550PPM)
My Hanna Multimeter must be wrong, because Hanna uses 0.5 conversion so it must be like 385 PPM not 550 PPM, but I'm sure i calibrated it correctly. Anyways i just added about a tablespoon 15ml of FloraNova Bloom per 10 Liters of Tapwater, used GH PH down to get it to 5,8 PH and i was done.

Now my question is...when i add nutes like in this for euro grower translated Lucas Formula table, i end up with an insane high EC level!

Is this because of my hard water? I just can't add that mich fertilizer.
I now added to my 40 Liters Tank 3 tablespoons Bloom and 1,5 tablespoons of Micro for hardwater.
( I read you need to be sure to add Micro before Bloom, is that right or bullshit?)
PH is now at PH 6,9 so i added PH down to get it to 5,8 PH.
I now have 1,89 EC, 1393 PPM and 5,8 PH at 23°C in my Tank.
After the chart this is like half of the Nutes you usually add. But i already got EC 1,89!
Or is this just fine? The Girls are going into flower today.

Sorry for the difficult writing.
I hope someone can help me

Thanks,

Ivorist

I wish I could, I use Lucas as well tho in coco and by hand watering, and I use micro and bloom and a bit of Epsom Salt to add magnesium sulfate

I also use tap water and mine is also very hard and alkaline (7,6PH) tho I did`t experience any problems so fare (but I Im also very carefull adding nuts maybe to careful and on the low side)

and some how I think your right about mixing them, I all ways add the micro (red/purple bottle for hard water) fist before bloom, think I read it somewhere or was told by the hydro store ? my "great" memory some how let me down here but I think your right, atleast it don't hurt to do ..

Hey,
i also have some plants in coco i fed them nova bloom 1,67 EC and to 5,8 PH correct the tap water with PH Down.
They are all healthy and look amazing. From now on i'll add flora micro too. So 2 parts bloom 1 part micro and ph 5,8.
I think this will work.
Do you PH correct your water??