API StressZyme 4 oz – Beneficial Bacteria for Aquariums
API StressZyme 4 oz – Beneficial Bacteria for Aquariums
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📖 Overview The API StressZyme (4 oz) is a biological aquarium supplement that adds millions of live beneficial bacteria to your tank. These bacteria break down organic waste, reduce sludge buildup, and improve water clarity, as part of regular aquarium maintenance.
Perfect for smaller aquariums, new setups, and weekly maintenance, StressZyme helps reduce cloudy water, may help reduce some organic debris, and supports a thriving biological balance.
Key Features
Adds Beneficial Bacteria for biological filtration
Reduces Sludge & Organic Waste buildup
Improves Water Clarity & keeps tanks cleaner
Safe for Freshwater & Saltwater Aquariums
Compact 4 oz Size: Treats approximately 236 gallons at the standard weekly dose
📐 Specifications
- Brand: API (Aquarium Pharmaceuticals)
- Product: StressZyme Beneficial Bacteria Supplement
- Size: 4 oz (118 mL)
- Use: Freshwater & Saltwater Aquariums
- Dosage: 5 mL per 10 gallons weekly; for new tanks double the dose at startup and use for 2 additional weeks
❓ FAQ
Q: When should I use API StressZyme?
A: Use weekly for established tanks. For new setups, double the standard dose at startup and continue the manufacturer's new-tank regimen for 2 additional weeks.
Q: Is this safe for shrimp, snails, and live plants?
A: Yes, StressZyme is completely safe for all aquarium inhabitants and plants.
Q: Can I use StressZyme with other treatments?
A: Yes, it works well with dechlorinators and most aquarium conditioners.
Q: What benefits will I see over time?
A: Clearer water, reduced sludge, healthier fish, and fewer filter cleanings.
Maintenance Reminder
STRESS ZYME supports breakdown of organic debris. Continue normal aquarium maintenance, including water changes and testing. Follow the manufacturer label for correct dosing.

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