No More Black Beard
 
Black Beard algae can be a virulent problem that occurs in many planted aquariums.  This can result in poor plant growth.  When Bearded algae becomes a problem, you should add No More Black Beard to aquariums and ponds for lush green plant growth.
Directions:
 
After a major water change of 30-40%.  For 1st dose, add 5ml for each 50 litres of water, then add 1ml per 40 litres water every 2 days for 1-3 weeks.