Is there a difference between Flourite and Flourite Red in the mineral content of the product?
There is a slight variation in mineral content. Overall they are predominantly an aluminum, iron, potassium and magnesium based ore. For planted aquarium use it is principally the iron that confers a benefit, although the presence of other trace minerals would be expected to also confer some benefit as well. This chart compares the mineral composition of all of our plant substrates.
