Indeed! Dosing certainly will not harm your tank and can provide for more delicate and troublesome plants that have certain requirements. Excel can also act as an algaecide to a minor degree and in that regard can be very effective. we keep many low tech tanks and dose a variety of different supplements for each tank based upon their specific needs. Excel, Flourish, Iron, Potassium, Nitrogen, Iodide, Trace are all in my cabinet.
"In the land of the blind, the one-eyed man is king" Desiderius Erasmus