API Stress Zyme 16 oz.

Stress Zyme accelerates the development of the biological filter and helps clean a dirty aquarium. It rebuilds bacterial flora after medical treatment. 

It contains over 345 million live bacteria per teaspoonful. It breaks down organic compounds that cause dangerous conditions such as ammonia and nitrite poisoning and low oxygen levels. No refrigeration necessary.

Directions: Use when setting up an aquarium and every week ongoing. Continuous use assures an active biological filter, cleaner aquarium, healthier fish and good water quality.

Add 1tsp. (5ml) per 10 gallons of water weekly.

For new aquariums  or to help boost the biological filter: double the dose, use at start up, and for 2 additional weeks.