Algae is no fun. It will destroy the beauty of your pool by causing cloudy, discolored water. It can even cause unpleasant odors around your pool. The poolife® brand offers an extensive range of algaecides that not only rid your pool of existing algae but prevent future algae blooms. Most of these products are non-foaming, do not require pH adjustment before use and work in 24 hours.

poolife® Defend+® Algaecide

poolife® Defend+® algaecide is a non-foaming algaecide that not only treats and prevents green, black and yellow algae, but also clarifies your pool water. This powerful formulation can be used for the prevention of future algae growth and the treatment of visible algae.


32 fl. oz.

How to Use for Start Up

Initial treatment for prevention of algae growth in clear pool water. Use 8 to 12 ounces per 10,000 gallons of water. For pools with visible algae use 16-24 ounces per 10,000 gallons of water. Remove dead algae by vacuuming.

How to Use for Maintenance Dose

To maintain pools free of visible algae add 4-8 ounces per 10,000 gallons of water weekly.

Compatible With

Can be used with all chlorine, bromine, salt water, ozone and mineral based sanitizing systems


Ideal for treating green, black and yellow algae.

Useful Tips

  • Ideal for treating green, black and yellow algae.
  • Shake well before measuring out the required amount of product.
  • Use as Step 3 within the poolife® Brite Stix® System and the poolife® MPT Extra™ System.