Brix is not something I know much about. One needs a special instrument to know anything about brix levels, right?Watch the brix. If the hack is better brix goes up.
It does when you say it, though I'm not confident I could repeat it in my own words. I'm way behind in specific knowledge like you're sharing here.Does that make sense, it was hard to put it to words.
I usually topdress with a nice thick layer of leaf mold which I imagine would be better than the coco what with all of the trace minerals it contains. That would supply the carbon as well as some nutrients.Carbon is the big input I worry about. Plant pots break the carbon cycle.
A dead tree gets eaten by a microbe that breathes 02. The microbe combines the carbon from the dead tree with the O2 it breaths and exhales CO2. The tree breathes that co2 in and stores the carbon and releases the 02 to atmosphere for the microbe to use again.
When the tree dies that carbon falls to the ground for microbes to eat and complete the cycle and it all goes round and round.
In pots the tree never lands back in the pot when it dies so you need to supply more carbon to the soil. I like coco for this.
I also add biochar to my mix, though I imagine that doesn't count toward what you describe as that carbon is supposed to last thousands of years in the soil (at least from studies done on Amazon Basin soil from long ago civilizations) so the microbes don't seem to be breaking that down in any appreciable manner.
I'm not sure how molasses can be a good carbon rescue given the minute amounts used at any given time. Maybe as a food source for the microbes it results in a population explosion and die off and it's actually the newly dead microbes that add the carbon?Most small pot grows run out of carbon 1st but molasses is a good carbon rescue.