AQUABACxt is a highly effective, US EPA-registered biological larvicide. It contains a species of bacteria called bacillus thuringiensis (BT), an approved larvicide for controlling red worms and midge flies in wastewater treatment plants.

Red worms find wastewater plants to be a perfect home. They survive by eating your MLSS, then hatch into midge flies and the cycle repeats. The active ingredient in AQUABACxt kills the red worms and breaks this cycle.

Lar-V-Zyme helps degrade the cocoons red worms like to build around themselves, exposing more red worms to the AQUABACxt treatment. You can often find these cocoons on the walls of clarifier rings or the sides of basins. This simple trick can increase the effectiveness of AQUABACxt dramatically.

We recommend using Lar-V-Zyme for the for the entire duration of AQUABACxt treatment. After this initial treatment an annual or biannual 20 day treatment is helpful for restoring the benefits.

Common symptoms of red worm infestations include: disappearing MLSS (the red worms are eating it), stringy or clumpy return activated sludge, and nuisance flies that attract pests. AQUABACxt is safe to use and will only kill a very narrow set of target species; larvae of the mosquito, midge flies, and black flies. It will not cause effluent toxicity issues.