Skip to product information
1 of 1

Fluval Cycle Bio Enhancer 16.9 oz

Fluval Cycle Bio Enhancer 16.9 oz is a concentrated beneficial bacteria supplement designed to establish and maintain a healthy biological filter in freshwater and saltwater aquariums. It introduces live nitrifying bacteria that help convert toxic ammonia and nitrite into less harmful nitrate, creating a safer and more stable environment for fish and invertebrates.

Ideal for new aquarium setups, large water changes, adding new fish, or after filter maintenance, Fluval Cycle works naturally without harsh chemicals. It will not affect pH or water chemistry and is safe for fish, plants, corals, and invertebrates.

The 16.9 oz size is ideal for large aquariums, fish rooms, retail maintenance use, and multi-tank systems, offering excellent value for frequent or high-volume dosing.

Key Benefits

  • 🦠 Introduces Live Beneficial Bacteria
  • Accelerates & Maintains the Nitrogen Cycle
  • 🐠 Helps Reduce Ammonia & Nitrite Spikes
  • Safe for Fish, Plants, Corals & Invertebrates
  • 💧 Ideal for New Tanks & Routine Maintenance
  • 🚫 Does Not Affect pH or Water Chemistry

⚙️ Product Details

Brand: Fluval
Product Name: Cycle Bio Enhancer
Size: 16.9 oz (500 mL)
Type: Beneficial bacteria supplement
Aquarium Type: Freshwater & Saltwater

Best For:

  • New aquarium cycling
  • Large aquariums
  • Fish rooms & multi-tank systems
  • After filter cleaning or media replacement
  • Adding new fish
  • Reducing ammonia and nitrite levels

💡 Directions for Use

  • Shake well before use
  • Dose directly into the aquarium or filter
  • Use during new tank setup, after water changes, or following filter maintenance
  • May be used daily until ammonia and nitrite are under control

Ensure proper aeration and filtration during use.

❓ FAQ Fluval Cycle Bio Enhancer

Q: Does Fluval Cycle instantly cycle an aquarium?
A: It speeds up the process by introducing beneficial bacteria, but full cycling still requires time and testing.

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

Q: Will this change pH or water parameters?
A: No. Fluval Cycle does not alter pH or water chemistry.

Q: Can this product be overdosed?
A: It is very forgiving, but following dosing guidelines ensures best results.

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


Explore More Aquarium Products:

Regular price $21.99
Regular price Sale price $21.99
Sale Sold out
Shipping calculated at checkout.
Quantity

Low stock: 3 left

View full details