API Stress Zyme Aquarium Cleaning Solution – Live Bacteria for Freshwater & Saltwater Tanks (16 oz)

Spend less time cleaning and more time enjoying your aquarium with API Stress Zyme — a powerful biological cleaning solution that works naturally to break down fish waste, uneaten food, and organic sludge before it becomes a problem.

Each teaspoon contains over 300 million live beneficial bacteria that consume organic debris, keep gravel and glass cleaner, and strengthen your tank’s biological filter over time. Safe for both freshwater and saltwater aquariums, Stress Zyme reduces the buildup of harmful ammonia and nitrite — creating a healthier, more balanced environment for your fish with less effort from you.

Why Aquarium Owners Use Stress Zyme Weekly:

• 300+ million live bacteria per teaspoon — rapidly consumes sludge, waste & organic debris
• Reduces ammonia & nitrite buildup — helps prevent harmful water conditions that stress fish
• Keeps gravel & decorations cleaner — breaks down buildup in hard-to-reach areas like rock and coral
• Boosts the biological filter — supports a naturally balanced aquarium cycle
• Works in freshwater & saltwater — versatile for all tank types

How to Use: Add weekly to freshwater or saltwater aquariums to maintain a strong biological filter and a clean, healthy tank.

Contents: 1 x API Stress Zyme, 16 oz bottle.