Do aquarium plants need fertilizer?

Do aquarium plants need fertilizer?

Marc Grover (Professional Aquarist) gives expert video advice on: What plants are best for my freshwater aquarium?; How do I choose a healthy plant for my aquarium?; What kind of lighting will my aquarium plants need? and more...

When you have a plant aquarium, plants will need food of some sort, some type of fertilizer. Depending on the type of aquarium you have and how many fish you have, they may be able to drive that simply from the fish waste itself. Most of the time, that's not adequate enough for them. You're going to get an after market plant additive that's going to be pretty heavy in iodine, iron, and some other elements that those plants need for a fertilizer base.