API Stress Zyme

Aquarium Pharmaceuticals
$16.95 - $39.95
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Boost Biological Filtration Naturally

API Stress Zyme is a biological additive that introduces over 300 million live bacteria per teaspoon to help break down organic waste in aquariums. By reducing sludge, uneaten food, and fish waste, it keeps water clearer and supports a healthy biological filter. Regular use helps maintain stable conditions and reduces maintenance needs.

Key Features & Usage Details

  • Adds live beneficial bacteria to support filtration

  • Breaks down organic waste and aquarium sludge

  • Improves water clarity and stability

  • Reduces maintenance by keeping gravel and filters cleaner

  • Safe for freshwater and saltwater aquariums

Directions & Effective Dosing

Add 5 ml per 38 liters of aquarium water weekly. Use consistently after water changes, filter cleanings, or when adding new fish. Continued use strengthens the biological filter, keeping water quality high and fish healthier.