Aqua Meds Clear Shine 128 oz Add one ounce of Clear Shine for every 1,000 gallons of pond water. Add to pond at base of waterfall or at skimmer. Treat weekly or as needed. If a second treatment is needed, wait 24 hours before applying. Some "scum" will appear on the surface of your pond within one hour or less after treatment. Scum will be removed by your skimmer or will disappear within 24 hours. When treating with Clear Shine, filter media should be checked DAILY to prevent your pond filter from clogging. Clear Shine is even more effective when applied two days after treating your pond water with AquaMeds Pond Support and/or Organic Control.