8% Copper – Lagoon Algaecide

8% Copper is an effective chelated copper algaecide for getting rid of algae and aquatic plants. It is especially effective on branched, filamentous, and planktonic algae species. Algae is easiest to treat early in the season, and when water temperatures are above 60°F. Warm water encourages the algae cells to take up the copper, as this is when the algae is actively growing. Early in the season the algae has built up fewer defensive structures, making it less likely to regrow after treatment. An algaecide like 8% Copper is the first part of a complete treatment for a lagoon that will serve your needs for years to come. Once 8% Copper kills the algae, it will need to be degraded to get the best water clarity and prevent dead algae from contributing to the muck or sludge layer at the bottom of the pond.

*For a complete treatment and best water clarity, learn more about using 8% Copper with PondZilla Pro below.

5 gallon case



The Science Behind It

8% Copper, like all algaecide, is a temporary fix. The best way to improve long term health and performance of a wastewater lagoon is to minimize sludge accumulation.  It is often sludge on the bottom that leads to many lagoon issues, such as high ammonia, BOD, and TSS.  For reducing sludge, we turn to Sludge Rx, a pioneering tablet sludge control solution. For rebalancing of the lagoon system, operators use the VitaStim Lagoon Line; VitaStim Summer Slam, VitaStim Sludge Reducer, and VitaStim Polar.

Enhance Penetration with PondZilla Pro Pairing

You can get the most out of an algaecide and discourage algae regrowth by pairing it with an adjuvant. The best adjuvant is PondZilla Pro. The biocatalysts in PondZilla Pro aid in the penetration of the copper algaecide into the algae, break down algae’s defensive barriers, and help degrade the dead plant material so it doesn’t contribute to the sludge layer.


Tips and Tricks

For best results mix 8% Copper and PondZilla Pro in a tank sprayer. Typical dilutions are 10:1 with water, see table below. 8% Copper works on contact and is limited in its ability to travel laterally in a pond. This means even distribution over the surface of the targeted area is important to get the best result.


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