I have been fighting Sunshine Mix4 for years, as well as the resulting pH and nutrient issues. It is one reason why I know I can grow better medicine for our patients.
These readings were from mature plants that won't benefit from being transplanted. I do need to figure out how to make my adjustments on a new mix, as well as how to adjust for my 10 gallon plants going into bloom now.
So, shy of being able to rework the soil, is there anything I can do for the next 8 weeks of flower that will help my 10 gallons?
I will look into adding coco, dolomite or azomite to new plants Mix4 to fix my issues until I can work into supersoil, which will take some time unfortunately.
What am I missing?
ill give you my soil recipe if you want, i dont get deficiencies or pH problems. remember, the more you compost this, the better.
you should get about a 3x3 compost box for this.
base soil

add a bag of each)
black kow original 5-5-5
fox farms light warrior or happy frog
what you should add:
dead leaves(you rake them up every fall, you should have a shit ton)
dead sticks
egg shells
(both of these can be found at pet stores/nurseries/hydro stores.
earth worms(suggested) OR buy worm castings
high nitrogen bat guano
you can use this as your soil for veg, i have a separate one for flower as well, unless you would just rather water with bat guano/salt based nutes(id go easy on them though, salt buildups suck).
FLOWER:
base:
black kow original 5-5-5
fox farms ocean forest and happy frog
should add:
eggshells(always good for cal)
banana peels, old/expired fruit
should add earth worms, they help break everything down very well
high P and K bat guano
blood meal/bone meal(optional, would be beneficial)
you should water the compost keep it moist, you can use both of these as feed in your water or compost teas(highly recommended)
what you should add to both flower and veg composts:
roots of dead weeds, you can pull them out of your yard and compost the plant as well as the roots, try to break them down with a shovel so the worms dont have a hard time breaking it down. the roots also have beneficial microorganisms living on them.
to feed these organisms: add sugary drinks, anything high in sugar is pretty good. let the worms break it down for about a month before using it, so anything youve put into it is broken down by worms. blackstrap molasses is also very efficient. get un sulphured.
when you add your base soil, id fill the bottom of these with coco/perlite/vermiculite. i sometimes even add rockwool, optional of course.
before using any of these, id soak them in pH water, somewhere around 6.3-6.7 water. try using some superthrive sometime too, this may help when you give them a flush.