K deficiency....
Mimics nute burn . Can be compensated with Kelp Meal , greensand or bone meal.
Big Bloom is the ONLY “ organic “ of the trio. And is kind of light in Nutes.
Look at Gro big of trio .... NPK . You can bump with 2 - 3 teaspoons per gallon water.
It will also green it up ..... a little goes a long way ( concentrated ) and easy to overdo.