I wont say that this is a conclusion but a valid Observation of all things in my tank(s) over the years.
Clean tank, Great lighting (higher PAR level and spectrum) Water changes and supplemental dosing (dont go overboard with snake oils) good husbandry. All of these will contribute to a low nutrient tank (not starved) that will have COLORED UP STICKS !
Can I close the thread now Rich ??
Kasei