Pond Force™ Pond Bacteria Cold Water Blocks LED Avoid pump overheating by keeping

Avoid pump overheating by keeping the water level from getting too low

500 Gallons (3) 8oz Bales 855938000048 3

100% free of lead

use air stones rather than these diffusers

while biological gravel media facilitates beneficial bacteria growth

Pond Force™ Pond Bacteria Cold Water Blocks LED Avoid pump overheating by keepingPond 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.