Algae Control

Applied Biochemists® Black Algaetrine® is a powerful, fast-acting algaecide specifically designed to control and eliminate black algae—one of the most stubborn and persistent forms of pool algae. Its concentrated, copper-based formula penetrates algae’s tough outer layers, attacking it at the roots for long-lasting control and effective eradication.

Ideal for use in gunite, plaster, and concrete pools, Black Algaetrine® works quickly and efficiently to clear up infestations and prevent regrowth when used as part of a regular maintenance routine. It is compatible with most pool sanitizing systems and is safe for use when applied according to label directions.

Key Benefits:

• Specifically Targets Black Algae: Formulated to break through the protective layers of black algae, killing it at the source.

• Copper-Based Formula: Delivers powerful, long-lasting residual control to help prevent reinfestation.

• Fast-Acting Treatment: Begins working immediately upon contact for visible results within days.

• Ideal for Concrete Surfaces: Especially effective in gunite, plaster, and other porous pool surfaces where black algae takes hold.

• Sanitizer-Compatible: Works in conjunction with chlorine and other standard sanitizers without adverse reactions.

Ideal For:

• Residential and commercial pools with black algae presence

• Concrete, plaster, or gunite pools where algae can root in surface pores

• Targeted spot treatments or full-pool algae control programs

Directions for Use:
Brush affected areas thoroughly to break algae's outer layer. Apply Black Algaetrine® directly over black algae spots or broadcast evenly across the pool, depending on infestation severity. Allow circulation and maintain sanitizer levels during treatment. Use caution with prolonged copper exposure in high concentrations.

Take control of the toughest algae problem—Applied Biochemists® Black Algaetrine® delivers professional-grade performance against black algae for visibly cleaner, healthier pool water.

Initial Treatment: 12 oz. treats 10,000 gallons of water.
Weekly Maintenance Dose: 6 fl. oz. per 10,000 gallons of water.