Pond Force™ Pond Bacteria Cold Water Blocks LED Eliminates most planktonic and filamentous

Eliminates most planktonic and filamentous algae quickly and efficiently

while biological gravel media facilitates beneficial bacteria growth

use air stones rather than these diffusers

healthy and algae-free over the long haul

but you will also reap the other benefits of a biologically healthy pond: sparkling water

Pond Force™ Pond Bacteria Cold Water Blocks LED Eliminates most planktonic and filamentousPond Force Pond Bacteria Coldwater Blocks contains strains of beneficial bacteria that work naturally to clarify water and reduce sludge. This treatment is specifically designed for spring and fall, working in water temperatures between 35 and 95 degrees Fahrenheit. Each packet treats up to 1000 gallons.