Does anyone know how long the nutrients in eco complete last? Does it lose its nutrients as it ages? I am growing alot of rosette type of plants that are heavy root feeders and need to know if I need to add any kind of root tabs.
Simple answer: none.
It's mostly inert, hard rock.
Some reduction(very little) etc, but to my knowledge, no one has ever published or shown any fertilizer data or CEC on Eco complete.
Compared to Jobes sticks, ADA AS, osmocoat, Soil, worm castings etc.......... it's absent in terms of nutrients. Same for flourite. Can hold a fair amount of bacteria, but not much better than sand nutrient wise.