I went to a aquarium fish shop and the specialist gave me API Algae Fix with the instructions to add 14 drops per 40 liters. I have to admit I read the label which states it should be used with shrimps but since the "specialist" advised I still added to the tank.
The Fluval Edge 2 “comes complete with the new powerful & efficient 42 LED lighting system with deep blue night light setting. 7600k high luminosity LED’s suitable for aquatic plants. Complete with a 3 position on and off light switch with bright white daytime or deep blue night light or off position. ” - you can read on a few reviews. However there were two letdowns for me, the manual switch which is annoying to turn on and off the