Just as a quick question, what brand/light fixture is this LED light?
I dug through all of your old posts and figured out which light fixture you have. You have the Current USA Freshwater LED+ Fixture, which should put you between 21-28 PAR for a 55 gallon tank (21 inch height). Most people would consider this low-light. With it, you should be able to grow most low-light plants and maybe some medium-light plants.
Last edited by xiaoxiy; 07-02-2013 at 05:56 PM.
Reason: Figured out light fixture.