Crystal Plex Lake & Pond Algaecide - Liquid Copper Treatment (1 Gal, Treats 1 Acre) | Crystal Blue

Crystal Plex: A versatile liquid copper algaecide for ponds and lakes

Crystal Plex is a ready-to-use liquid copper algaecide designed to tackle a range of algae in outdoor water features. This product helps lake and pond owners maintain clearer water and a healthier habitat for wildlife, while supporting safe enjoyment for people and pets when used as directed. The formula targets multiple common algae types and offers flexible, practical applications for year-round maintenance that fits typical backyard and larger water features alike.

What algae types can Crystal Plex help with?

• Filamentous algae that form slimy mats across the water surface
• Chara or stoneweed growth that can cloud water and reduce aquatic light
• Planktonic algae that bloom in warmer months and alter water color
• Swimmers itch-related nuisance growths observed in some ponds

When used as directed, Crystal Plex is described as safe for humans, fish, livestock, pets, birds, swimming and irrigation. Always follow label guidance and local regulations for your pond type.

How to use Crystal Plex

• Apply only to a portion of the pond at a time, treating one third to one half of the water per application
• One gallon treats up to 1 surface acre at a depth of 1 to 3 feet
• Not for use in koi, goldfish, or trout ponds
• After the initial treatment, monitor water and reapply as directed by the label if needed

Realistic use cases include preparing for swim season, maintaining visible water clarity, and supporting seasonal algae management during blooms. Crystal Plex is intended to aid algae control while preserving a safe, inviting water feature for family enjoyment and wildlife alike.

Why choose Crystal Plex?

• Liquid copper formula that is easy to dose and mix with pond water
• Part of Crystal Blue's pond care line designed for lake and pond environments
• Clear labeling and safety notes to help you plan responsible applications

By aligning maintenance with routine care and weather conditions, Crystal Plex offers a practical option for ongoing pond management. It does not promise guaranteed results, but it supports informed, measured treatments aimed at clearer water and healthier aquatic life.