Pond Force™ Pond Bacteria Cold Water Blocks Popular 000 Gallons 8oz 4oz 1

000 Gallons 8oz 4oz 1

clog-resistant and hard water-tolerant

Manifold Assembly with Valves to switch air flow from one diffuser to the other

5oz 7001 - 8000 24oz 5oz 6oz 8001 - 10

Internal chamber holds 3oz of carbon or other chemical/biological media

Pond Force™ Pond Bacteria Cold Water Blocks Popular 000 Gallons 8oz 4oz 1Pond 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.