Fluidized bed filtration is highly regarded and the go to
biological filter choice of most aqua farms globally for a
reason, they are super-efficient and take up a very small
space compared to any other type of filtration.
The LIFEGARD fluidized bed filter is a fluidized nitrobactera bed filter for marine and freshwater aquariums used to increase the fish - load in any aquarium! These are what Aqua-Farming uses as their go-to bio-filters.