Pond Water Treatments & Clarifiers

Browse pond water treatments at The Tech Den, including water clarifiers, green water treatments, phosphate-control products and pond dye. Compare options from API, Seachem, Oase, Serenity, Blagdon and Aqua-Pics to find a treatment for your pond-care needs.

Explore pond-care products

Water clarifiers: browse API Pond Accu-Clear and Simply Clear, Seachem Pond Clarigen and Oase AquaActiv PondClear.
Green water and algae treatments: explore Serenity Green Water Destroyer liquid and pond algae blocks.
Other pond-care options: compare Oase AquaActiv PhosLess Direct, Blagdon Clean Pond Pods and Aqua-Pics Blue Lagoon Pond Dye.

Choose a treatment for your pond

Start with the issue you want to address, then compare each product's intended use, dosage and treatment volume with your pond size. Check the product label for suitability for your fish, plants and other pond inhabitants, and follow its application instructions.

Some listings in this collection are aquarium-specific products. Check each product's intended application before choosing it for pond use.