OASE Lake Therapy Beneficial Bacteria Block 8 lb

The OASE Lake Therapy 8 lb Beneficial Bacteria Block delivers time-released beneficial bacteria into lakes and ponds to maintain biological balance, enhance dissolved oxygen, reduce ammonia and nitrite, and digest organic sediment. One 8 lb block treats 8 acre-feet (approximately 2.6 million gallons) of water and remains effective across a wide range of pH conditions and water temperatures.

What It Treats

• Noxious odors from hydrogen sulfide, decomposing plants, and fish waste
• Elevated ammonia and nitrogen levels
• Low dissolved oxygen conditions
• Accumulated organic matter on the pond or lake bottom

How To Apply

• Place the block directly into the water or suspend it from a dock or floating fountain
• Treatment zone: one 8 lb block per 8 acre-feet (2.6 million gallons)
• Initial application, then reapply after 30 days, and every 60 days thereafter
• Bacteria remain effective across a wide pH and water-temperature range

Key Features

• Time-released formulation — bacteria dissolve gradually from the block for sustained dosing between visits
• Broad tolerance — effective across a wide range of pH and water temperatures, including cold-water ponds
• Reduces ammonia, nitrite, and hydrogen-sulfide odor — addresses multiple symptoms of nutrient overload at once
• Boosts dissolved oxygen while digesting organic sediment on the bottom
• Commercial-grade — Part of the OASE Professional Lake Therapy line used by lake management companies nationwide

✅ Safe for fish, wildlife, and aquatic plants. No heavy metals.