Algae Defense®

Aquatic Algaecide

Fast-Acting Liquid Formula
Eliminates Floating & Suspended Algae
Treats Up To 8,000 sq. ft.



Formulated for fast acting results, Algae Defense can be applied directly to troublesome algae and chara to treat both floating and bottom forming algae. Algae Defense carries no water use restrictions making it great for fresh water lakes, potable water reservoirs, and game fish ponds and water treated with Algae Defense may be used immediately for recreational activities, drinking and irrigation.



Video - Algae Defense
Video - Airmax EcoSystem
Algae Control
Product Label - 1 Gallon

Weeds Treated

String Algae


How to Use

Algae Defense
1 Gallon
Application Liquid
Temperature Restriction Use When Above 60°F
Square Footage Per Container Up to 8,000 Square Feet
Shelf Life 2 Years


Treatment Area
Algae Defense
Treatment Booster Plus
1,000 Square Feet 1/2 Quart (16 Ounce) 1-1/4 Gallon 4 Ounce
2,000 Square Feet 1 Quart (32 Ounce) 2-1/2 Gallon 6 Ounce
4,000 Square Feet 2 Quarts (64 Ounce) 5 Gallon 12 Ounce
8,000 Square Feet 4 Quart (1 Gallon) 10 Gallon 22 Ounce

Please note: Above are recommendations. Always read the product label.


Algae Defense should be applied to target algae while it is active and growing. The active ingredients in Algae Defense will be absorbed by the plant killing it entirely.


Mix the desired amount of Algae Defense and pond water in accordance to label directions. Using a pressurized sprayer; spray the Algae Defense mixture directly onto target algae. Use with Treatment Booster Plus for best results. Overtime treated algae will begin to brown and die. Once it is completely dead, rake the dead algae away to prevent an accumulation of plant decay and pond muck.


Algae Defense is not recommended to be used in ponds with koi, goldfish, grass carp, or trout, unless carbonate hardness is above 50ppm.


Algae Defense can not be shipped to Alaska, California, Connecticut, District of Columbia, Hawaii, Maine, New Jersey, New York, Puerto Rico, Rhode Island, Vermont, Washington or Canada.


Accessories & Related Items




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Item Numbers and UPC

Item Number
UPC Code
530130 895394000398 1 Gallon

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