Fluval Cycle Bio Enhancer – 4 oz

Fluval Cycle Bio Enhancer – 4 oz

Fluval Cycle Bio Enhancer 4 oz is a concentrated beneficial bacteria supplement designed to jump-start and maintain the biological filtration in freshwater and saltwater aquariums. It rapidly introduces live nitrifying bacteria that help convert toxic ammonia and nitrite into less harmful nitrate, creating a safer environment for fish.

Ideal for new aquarium setups, after water changes, filter maintenance, or adding new fish, Fluval Cycle helps reduce harmful waste buildup and supports a stable, healthy nitrogen cycle. Unlike harsh chemical treatments, Cycle works naturally and safely without affecting pH or harming fish, plants, or invertebrates.

The 4 oz size is perfect for home aquariums and routine maintenance, providing reliable biological support when your tank needs it most.

🌟 Key Benefits

• 🦠 Introduces Live Beneficial Bacteria
• ⚡ Helps Establish & Maintain the Nitrogen Cycle
• 🐠 Reduces Ammonia & Nitrite Levels
• 🌿 Safe for Fish, Plants & Invertebrates
• 💧 Ideal for New Tanks & After Water Changes
• 🚫 Does Not Affect pH or Water Chemistry

⚙️ Product Details

Brand: Fluval
Product Name: Cycle Bio Enhancer
Size: 4 oz (118 mL)
Type: Beneficial bacteria supplement
Aquarium Type: Freshwater & Saltwater

Best For:

• New aquarium setups
• Cycling tanks safely
• After filter cleaning or media replacement
• Adding new fish
• Reducing ammonia and nitrite spikes

💡 Directions for Use

• Shake well before use
• Dose directly into aquarium or filter
• Use during new tank setup, water changes, or after cleaning filters
• Can be used daily until ammonia and nitrite levels are controlled

📌 Always ensure proper aeration and filtration during use.

❓ FAQ – Fluval Cycle Bio Enhancer

Q: Does Fluval Cycle instantly cycle a tank?
A: It helps establish beneficial bacteria faster, but full cycling still requires time and proper testing.

Q: Is this safe to use with fish in the tank?
A: Yes. Fluval Cycle is safe for fish, plants, and invertebrates when used as directed.

Q: Will this lower pH or change water chemistry?
A: No. It does not affect pH or water parameters.

Q: Can I overdose this product?
A: It is very forgiving, but always follow the recommended dosing for best results.

Q: Can this be used in saltwater tanks?
A: Yes. Fluval Cycle is safe for both freshwater and marine aquariums.