Interpet extract of barley straw is a totally natural means of resolving algae problems in garden ponds. Its unique formulation
...Interpet extract of barley straw is a totally natural means of resolving algae problems in garden ponds. Its unique formulation clears ponds of both green water algae & filamentous blanket weed. Bio friendly treatment. Available in three sizes. treats 4, 000 gallons for 6 weeks.