[dennis]

I thought that the benefit to Flourite was the high CEC allowing Fe adn other nutrients to be available to plant roots, not necessarily the amount of Fe it actually contains. That is true for peat too though right or am I mistaken?

 

[dennis]

Its also rather low in Fe too. One of the lowest. I wonder about peat moss and Eco complete. Where are they in respect to that list?

 

[dennis]

Black diamond is a brand of activated carbon for use in filters. I assume, but do not know, that that they could be used that same. I know that charcoal and carbon can be bought at my local garden center to add to the you potting mix. Would it the be a source of DOC? (dissolved organic carbon) Would peat also have a high DOC?