Oh, I thought you just mixed peat with coco and top dressed with guano and castings and watered with the earth juice bloom and teas.. It looks like a low nitrogen soil which is why your leaves have yellowed.
The author of the recipe says:
"If I get early fade I will water in bubbled nutrient teas,
fish hydrolysate and/or organic blackstrap molasses."
Yeah you probably need some nitrogen. You won't restore the yellow leaves but the plants still need some nitrogen in flower. Just don't go overboard.
Good luck.