It has a fair amount in it. It will depend on the tank if you need to add extra iron
Bill, click on the link Craig posted, according to that chart it contains much more iron then both flourish and TMG/TropicaIt does, but not as much as Tropica Plant Nutrition or Seachem Flourish.
Whether or not you need to dose supplemental Fe depends on any actual/perceived deficiencies in your plants. But it's not a given.
Oops. My bad. What makes it worse is that I have that same chart printed out at home. :icon_lol:Bill, click on the link Craig posted, according to that chart it contains much more iron then both flourish and TMG/Tropica