Algisin is an effective treatment against blanket weed in ponds.  Due to powerful activity blanket week will be removed quickly.  Within a few days after use of Algisin the remains of blanket weed can be removed with a fine coarse net.  Further on the remainder will be decomposed by bacteria and collected in the filter.  Algisin, is when dosed correctly, safe for fish and plants.  This makes it the perfect solution for blanket weed.  To avoid risks to man and the environment, comply with the instructions for use, see enclosed manual.