FritzPond Algae Clean Out

  • EPA-approved algaecide
  • Stops Algae Growth and Green Water
  • Controls String Algae
  • Fast-acting Formula

About FritzPond Algae Clean Out

Excessive algae growth and green water are some of the most common complaints of pond and water garden owners. Left unchecked, algae is both unattractive and potentially hazardous to fish and plant life. FritzPond Algae Clean Out® is the most concentrated EPA-registered algaecide formula available on the market. FritzPond Algae Clean Out® targets string algae, blanketweed and green water caused by single-celled algae. Unlike some algaecides on the market, FritzPond Algae Clean Out contains no copper - it is a selective algae control product that will not harm fish and live plants when used as directed. It is also safe for wildlife and pets who may access the pond when used as directed. 

FritzPond Algae Clean Out is effective in ponds, water gardens, fountains and small water features.

Directions & Dosage

Use 6 drops per 10 U.S. gallons (37.85 L). Use 18 drops (½ tsp) per 30 U.S. gallons (114L). Use 5 ml (1 tsp) per 60 U.S. gallons (227.1 L). Repeat dose every three days until algae is controlled.

  • For best results, add Algae Clean Out to a sump or high flow area of the the tank
  • No equipment restrictions necessary
  • No contraindications: can be used with all of our other products and meds
  • NOT SAFE FOR USE WITH FRESHWATER INVERTEBRATES including: snails, shrimp, clams, other crustaceans or molluscs; remove these types of livestock before dosing
  • Easy measuring: the 4 oz, 8 oz and 16 oz bottle caps are approximately 5 mL volume
  • Manually remove as much algae as possible before treatment, and after treatment
  • Perform a water change 1-2 days after treatment to remove excess nutrients
  • Water should be well aerated via waterfall, fountain or other method to prevent fish loss from depleted oxygen, especially during warmer temperatures.
  • Overdosed? Observe livestock for distress, perform small water changes if needed
  • Test for ammonia, nitrites, and phosphates with reliable test kits as dying algae may release these nutrients back into the water column.

It is a violation of federal law to use this product in a manner inconsistent with its labeling.


Size Treats Item Number
8 oz / 237 mL 2,839 gal / 10,747 L 25008
16 oz / 473 mL 5,678 gal / 21,493 L 25016
32 oz / 946 mL 11,356 gal / 42,987 L 25032
1 gal / 3.78 L 45,424 gal / 171,948 L 25128
2.5 gal / 9.46 L 113,550 gal / 429,833 L 25320



See below for frequently asked questions regarding FritzPond Algae Clean Out.

  • What is the best way to dose Fritz Pond Algae Clean Out® into my pond?

    The ideal way is either to add it directly to the water outflow of the filter or to dose it in several partial doses around various points of the pond (example: you have a 1,000 gallon pond and are dosing 17 capfuls. Move around the pond so each capful goes into a different part of the pond). The idea is to make sure no pocket of very concentrated Fritz Algae Clean Out® occurs as this can be stressful for fish. Rapid dispersion of Fritz Algae Clean Out® is the goal.

  • Is this safe for pets and wildlife?

    Yes, it can be used in any system accessible by pets and wildlife, including birds, amphibians, and reptiles. It is non-toxic and will not cause any harm if treated water is ingested.

  • Can you use Fritz Algae Control with shrimp and snails?

    No, the algaecide is not safe with freshwater invertebrates.

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