Improves the development of the biological filter and
helps clean a dirty aquarium. Contains over 300 million live bacteria per
teaspoonful. Breaks down organic compounds that cause dangerous conditions such
as ammonia and nitrite poisoning and low oxygen levels. Continuous use assures
an active biological filter, cleaner aquarium, healthier fish and good water
quality. No refrigeration necessary. Use when setting up and maintaining an
aquarium. For use in fresh and saltwater.