Get rid of that annoying Black Beard Algae Black Beard Algae can be a virulent problem that occurs in many planted aquariums. This can result in poor plant growth. For optimum results and lush green growth you should add No More Black Beard.
A two week treatment is recommended. Do not overdose.
Initial dose 5ml per 50 litres
Every two days after the initial dose - 1ml per 40 litres for one to two weeks.