MICROBE-LIFT Nite-Out II Aquarium Bacteria, 1.9 L for Ammonia and Nitrite Control

MICROBE-LIFT Nite-Out II is a concentrated live-bacteria aquarium treatment for establishing biological filtration and reducing ammonia and nitrite in freshwater and saltwater tanks, in a 64-ounce bottle.

• Live nitrifying bacteria — supports the biological filter that processes ammonia and nitrite.
• Nitrosomonas and Nitrobacter cultures — convert ammonia to nitrite, then nitrite to nitrate.
• For freshwater and saltwater aquariums — suits a range of aquarium environments, including reef setups.
• Use in new or established systems — helps start nitrification or support it during aquarium maintenance.
• 64-ounce size — provides a concentrated treatment for aquarium use.

Starting or maintaining an aquarium’s biological filtration takes more than treating the water itself: the system needs nitrifying bacteria to process ammonia and nitrite. Nite-Out II is made for aquarium setup and for periods when the biofilter may need support, such as after a water change, filter cleaning, medication, or the addition of livestock. It can also be used before fish or other marine life are introduced as a starter treatment.

How does Nite-Out II support aquarium water quality?

MICROBE-LIFT Nite-Out II supplies bacteria that establish and maintain nitrification in aquarium water. Nitrosomonas oxidizes ammonia into nitrite, and Nitrobacter oxidizes nitrite into nitrate. This biological process is designed to reduce the toxic effects of ammonia and nitrite and help maintain conditions for aquarium inhabitants. Nitrate is the next product of this conversion process, not a substance Nite-Out II directly removes.

• Designed to help keep ammonia levels low through nitrifying bacteria.
• Supports preparation for introducing new fish by establishing beneficial bacteria.
• For nitrate management, use water changes or MICROBE-LIFT Special Blend.

When and how should I use Nite-Out II?

MICROBE-LIFT Nite-Out II is used at aquarium setup and during ongoing biofilter support. Shake the bottle well, add the treatment at setup, and continue dosing daily until ammonia and nitrite readings are 0 ppm. After that, add it weekly or whenever the bioload increases. The directions tie continued daily dosing to water-test results, rather than to a fixed number of days.

• Use after water changes or filter cleaning to support the biological filter.
• Use after medication or when adding livestock as additional biofilter support.
• Prepare a new aquarium with beneficial bacteria before adding fish or other marine life.

Which aquariums and treatments can it be used with?

MICROBE-LIFT Nite-Out II is suitable for freshwater and saltwater aquariums, including community, planted, and reef systems. It is described as reef-safe, biodegradable, and non-toxic, and it works with most aquarium water treatments. The formula is intended for use around marine life, as well as humans, pets, and wildlife.

• Suitable for freshwater and saltwater fish tanks.
• Can be used in community, planted, and reef setups.
• Compatible with most aquarium water treatments.

Nite-Out II is suited to aquarium keepers setting up a new system, maintaining an established biofilter, or supporting the tank through routine changes and increased bioload. Its role is to support the bacteria-driven conversion of ammonia and nitrite; it is not a direct nitrate-removal treatment.