Do I need Flourish Iron?
I have been dosing my tank with Flourish and a free sample of PlantGro Iron for a couple weeks now. I just received Flourish N,P,K in the mail yesterday and started dosing today. The sample of iron is about to run out. Could I get away without using it or should I get some Flourish Iron?
The plants I have are HC, HM, Riccia, and dwarf hairgrass. Lighting is a 26watt CF and a 15watt CF over a 10gallon tank. Amazonia substrate.