EcoBlast® is the first line of defense that quickly and safely breaks down debris from waterfalls, streams, rocks, plant pots, and anywhere build-up has occurred. Start using EcoBlast® to spot treat trouble areas in your pond and follow-up with S.A.B. on a monthly basis to keep the water clear. EcoBlast® is fast-acting and 2 lbs. treats up to 650 sq. ft. of affected area.