all the 'ad gab' on Flourite original and Eco Complete and I've read user posts stating one is high in iron and the other supplies everything plants need. Well,,,,,,,
both have a high CEC which is useful but that's about it. I got over the rest of the blah, blah, blah on the crushed brick and volcanic gravel wish others would too. Be nice if they changed the label on EC.
Worth buying? If you have the spare funds yes. I've bought a pallet of Flourite and a wheel barrow full of EcoComp but I realize it's inert and use it mostly as a capping material now.
Having an inert sub tank I would add tablet supplements ever 3 months for rooted plants. Easy method and works great.
Eco is safe and easy to use so a good choice.
What is CEC think (Cation Exchange Capacity)
but yes think plant nutrient retention capacity or storing from the water and returning as needed until the supply is exhausted sort of like a battery too LOL.