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Zinc is an immobile element so it should not be showing on top of your plant.

I have 3 Mars 600w and those distances are spot on. That's what I use as a guide and don't have any problems.

Jacks rates 321 at full strength to be 990PPM on the 500 scale

I soak my seed in water for 18 to 24 hours, plant 1/4" deep in a peat medium in a solo cup, and keep moist with a spray bottle for 4 to 10 days.

All the research I've done on Jacks points to a great product. I think it's going to work well for me. I did get a reply from Jacks, the 728 wasn't the correct info. I have the official PPM now, so I'm all set.

hooha I don't know how much simpler I can explain my question. You said just test it, yes I could have done that but I wanted the official analysis from Jacks. I also needed to know if it was on the 500, 650, or 700 scale. Do you understand now?

This seems to fit the bill of a simple, tuneable nutrient set up that doesn't need a shit load of add on's. The only thing I may add is Recharge. Last years outdoor experimental grow went better than I expected. The "nutrient snobs" said I'd fail or have sick plants using Miracle Grow products...

Thanks Roger, I think I just found it. It says 728 PPM at full strength.

Again....I need THE OFFICIAL PPM RATING OF JACKS. Why is this so hard for people to understand what I'm looking for. The ACTUAL RATING FROM JR PETERS Thanks for your opinion but it's not what I'm looking for. I will try another site

I'll give this a try, thanks. I was just hoping a real grower using the product would see the post and give real info on it

PPM, lmfao

It still doesn't give the PPM. I can add NPK how is that the PPM? Simple math?

Apparently you don't know what you're talking about

I think it would be great to have it working again

Thanks, but I need the value of Jacks 321 at full strength I have charts

Can't find it, tried

Does the live chat work, or is there a trick to get into it?

WB

Does anyone know what the PPM is of Jacks 321 at full strength, either officially, or from personal experience. I can't seem to find the correct info.

It will be fine