API Stress Zyme Size:16 oz the Rottweiler is the king

the Rottweiler is the king of the guard dogs

and freshen breath

even within the same breed

The soft sponge can be conveniently attached to the handle

API Stress Zyme Size:16 oz the Rottweiler is the kingAPI STRESS ZYME bacterial cleaner contains over 300 million live bacteria per teaspoonful to consume sludge and reduce aquarium maintenance, keeping your aquarium clean and improving the natural aquarium cycle. Making STRESS ZYME bacterial cleaner part of your tanks regular upkeep routine assures an active biological filter, a cleaner aquarium, healthier fish, and good water quality. This product may be used in both fresh and saltwater aquariums.