Fluval UVC In-Line Clarifier

The Fluval UVC In-Line Clarifier is a safe, chemical-free way to clear cloudy and green water. Its energy-efficient 3W UVC bulb neutralizes the free-floating algae that clouds your tank, and it connects in-line to any canister filter with 5/8 inch (16 mm) hosing, so there is no extra pump to add. It treats aquariums up to 100 gallons and runs quietly in the background. Great alongside our Fluval 07 Series and other canister filters. Browse more gear in our saltwater and freshwater collections.

How It Works

As water flows past the UVC bulb, ultraviolet light neutralizes the free-floating algae responsible for green water, along with waterborne bacteria and pathogens. You get clearer, healthier water with no chemicals and no separate maintenance routine. Because it runs in-line off your existing canister filter, setup is simple.

Features

• Energy-efficient 3W UVC bulb clears cloudy and green water
• Runs cooler than traditional UVC bulbs to last up to three times longer
• Up to 80 percent less expensive to operate than competitive clarifiers
• Connects in-line to any canister filter hosing with a 5/8 inch (16 mm) internal diameter
• Chemical-free and maintenance-free, for aquariums up to 100 gallons
• Works in both freshwater and saltwater systems

Specifications

Which UVC Is Right for You?

This 3W model is sized for aquariums up to 100 gallons. For larger systems up to 400 gallons, step up to the Fluval FX UVC In-Line Clarifier (6W).

FAQ

What does it actually do?
It clears green water and cloudiness by using UVC light to neutralize free-floating algae and waterborne microbes as water passes through.

Which filters does it work with?
It connects in-line to any canister filter with 5/8 inch (16 mm) hosing, including the Fluval 07 Series and others.

Do I need to replace the bulb?
Yes, over time. Use the Fluval 3W CCFL UVC Lamp (A19998) to restore full clarifying power.

Freshwater or saltwater?
Both. The UVC In-Line Clarifier works in freshwater and saltwater aquariums.