Bacter 100 is a substrate additive, containing more than 100 kinds of substrate bacteria in a dormant state. By sprinkling on the base substrate, it can make an ideal substrate environment. By applying on top of the green algae, it suppresses the growth of it.

The substrate additives are designed to be sprinkled directly on the bottom of aquarium tank before spreading the base substrate. They keep the substrate environment in good condition, and promotes the propagation of microorganisms, and the growth of aquatic plant roots. With the help of additives, the substrate environment stabilizes quickly, and it makes possible to keep the aquarium layout for a long period.