True.
I use Hammerhead and MAOB during flower, both of which both have high concentrates. So that’s why I recommend what I did.
You can even make your own, which I’m going to try this year
Mono Ammonium Phosphate is the main ingredient in MAOB
And hammerhead is basically just
Mono Potassium Phosphate
(MKP 0-52-34)
With a bit of potash added.
Both of those nutrients you can find online for cheap and will give you a lifetime supply.
There are some other things you can add to make an exact copy of either of those (or extremely close to it) and I’m going to try this year.
If anyone wants a link I’ll send in a PM, I just can’t post em here.
In combination tho, I and others have had insane results. It’s well documented on other sites, but again, I can’t post them here.
But I definitely have seen side by sides, and the results are undeniable.
I usually grow in organic coco mixes, so this is the only forced-feeding I do, if any, during a grow. The rest of the nutrients are taken in by the plant according to its own needs.