Just feed more when you feed. I am feeding coco by hand 2x a day in late flower. Only needed once a day in veg though.
When you feed new nutes in coco, you are flushing it. You flush out the old used nutes and put in fresh at the right ph and ppm each time you feed.
Recharge makes every plant I use it on look better. I use it every couple of weeks or so by itself a few hrs before feeding. It also has molasses in it and those sugars might be breaking down salts and pls somebody that knows save me form myself....
If ec just climbs no matter what, then use a flushing solution, I use Flora Kleen per directions. Worked great the only time I used it, will have that bottle forever I think.