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Fluval FX UVC Inline Clarifier Unit 6w

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RRP $269.00
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Fluval FX UVC Inline Clarifier Unit 6w

The FX UVC In-Line Clarifier quickly and easily connects to all canister filters to eliminate suspended bacteria and algae for a clear and healthy aquarium. With unique CCFL technology, the FX UVC bulb runs cooler to last 2X longer than most traditional lamps. It attacks green and cloudy water by applying powerful, DNA-destroying light emissions at a precise 253 nanometer wavelength. This natural process is chemical-free and will not affect beneficial, surface-dwelling bacterial colonies that are already established. Say goodbye to cloudy and green water forever!




Ultraviolet clarification (also known as ultraviolet sterilization) is a proven technology that has a long history of aquarium use: its benefits range from controlling and eradicating suspended bacteria, suspended single cell algae, and various unwanted pathogens, to improving overall water clarity. The most effective wavelength for these purposes is 253 nm, which falls squarely into the UVC spectrum of light. While using a UVC Clarifier does not replace important aquarium husbandry practices such as regular partial water changes, regular filter maintenance, and the quarantining of new fish, it does add an extra layer of filtration that cannot be obtained otherwise.

Suspended Algae 

Placing an aquarium where it provides the best visual appeal is essential to enjoying this great hobby. This can mean, however, that some natural light may reach the aquarium at certain times of the day. This can quickly lead to suspended algae blooms, where nothing is seen in the aquarium other than green water. The use of a UVC Clarifier will not only rapidly clear green water, but will also effectively prevent it from developing at all!

Cloudy Water

Cloudy water can develop as a result of one of several factors: poor quality tap water, which may contain dissolved organics, excess feeding, poor tank maintenance practices, insufficient filtration, and more. Suspended bacteria and other organisms, which feed in the water column, exploit the nutrient-rich environment and begin to proliferate. The result of these organisms feeding and rapidly multiplying in aquarium water with these conditions is cloudy, milky white water. The use of a UVC Clarifier quickly eliminates suspended organisms, clearing cloudy water and preventing it from developing again in the future.

Purchasing New Fish

While quarantining new additions to your aquarium is unquestionably the best thing to do, it is unfortunately not possible for everyone to do so. At a minimum, always make sure to observe the aquarium from which you plan to purchase new fish carefully. Make sure that all the fish in that tank are healthy; if you see any signs of disease, make sure to point them out to the store staff and do not buy any fish from that tank.

Unfortunately, even when every precaution is taken, the addition of new fish can still lead to the introduction of diseases into your tank. Some symptoms may only reveal themselves later, once the new organism has been added to the tank. For this reason, preventive action is recommended.

A UVC Clarifier helps control the spread of unwanted bacteria and, depending on their life stage, parasites. Should an outbreak occur, it is usually less severe when UVC clarification is present. Furthermore, the presence of a UVC Clarifier helps buy time for an effective treatment to be found and applied. Having a UVC Clarifier does not mean you won’t have disease outbreaks, nor does it mean you don’t need to treat them should they occur. Rather, having a UVC Clarifier means that some disease outbreaks may be avoided, and that the chances of successfully treating disease outbreaks when they occur are higher.

While an aquarium filter already mechanically, chemically, and biologically filters water, a UVC Clarifier adds an extra layer of filtration that cannot be obtained otherwise. To protect your aquarium from green and cloudy water and make the most of your canister filter, purchase the Fluval UVC Clarifier today!

Quickly and easily connected to most canister filter setups, the UVC In-Line Clarifier eliminates suspended bacteria and algae for a clear and healthy aquarium. Ideal to use in conjuction with the Fluval 306, 307, 406 and 407 series filters.

  • A chemical-free and maintenance-free way to purify water
  • Eradicates suspended bacteria and algae in the water column that contribute to cloudy and green water, respectively
  • Helps prevent the growth of cyanobacteria that often smothers and destroys aquatic plants
  • Does not harm beneficial, surface-dwelling bacteria
  • Condensed design redirects water flow up, down and around the bulb to maximize contact time for effective clarification
  • CCFL (Cold Cathode Fluorescent Light) technology runs cooler than traditional UVC bulbs to last up to 30,000 hours (3X longer)
  • Easily fits within aquarium cabinetry without cluttering existing filtration setup
  • Quickly connects in-line to all canister filter hosing with an internal diameter of 5/8” (or 16mm), including all Fluval 07 and 06 Series filters
  • Multi-directional – works in either direction so there is no need to move existing filter setup
  • Energy-efficient – up to 80% less expensive to operate than competitive clarifiers
  • 4–24 hour timer included for optional intermittent use
  • Hose connector and mounting hardware included – no additional parts required
  • For use in freshwater, saltwater and even turtle aquariums where algae is often present

1 Review Hide Reviews Show Reviews

  • 5
    Works well

    Posted by Nathan on 8th Jun 2024

    Shipped quickly. Easy to install. Works as expected.

Coronavirus impacts 

Dear customers,
Thank you for your support in this unprecedented time. 
A lot of industries have been effected by the spread of Coronavirus worldwide and sadly we have not been an exception.
While we are packing and sending out your orders as usual, the demands on Australia Post due to isolation and online shopping are beyond anything experienced before.
During this time and to speed up the delivery of your packages Australia Post have taken the initiative to no longer scan barcodes for tracking. However, even with this initiative there are still significant delays to both express and regular post of up to 21 days. 
We appreciate your patience during these trying times and understand the frustration of delays, being a small Australian business we are incredibly grateful for your support.
If you have any questions about the process of your order from our warehouse, please do get in touch as we are happy to update, however any packages that have gone to Australia Post are beyond our control.
Stay safe and happy fish keeping.



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We are more than happy to ship Australia wide. When you place an order we guarantee that your items will be shipped within 2 working days. If, for reasons beyond our control, we are unable to ship your order within 2 working days, you will receive an email informing you of the estimated delivery time-frame. At Aquarium Spare Parts we aim to ship your orders as efficiently as possible. If you have any queries or concerns regarding shipping time-frames or costs, please feel free to email us.

Due to the nature of the parts that we have available, it is difficult to calculate some shipping prices (as your order combinations vary). We do our best to provide you with accurate shipping prices, however if you are concerned about the shipping price - email us and we can double check it for you. All orders are shipped via Australia Post unless specified otherwise.


At Aquarium Spare Parts we strive to ensure that you are satisfied with the items that you receive. We do this by providing as much detailed and accurate information about the products that you are purchasing. We want you to love what you have ordered. If something isn’t quite right or if you’re not satisfied with the items that you have received, we want you to let us know. We encourage you to do this as soon as possible. 

It is our intention to ensure you are satisfied with your entire online experience. 

If you find you are not satisfied with an item that you have received, you are welcome to return it to us. We accept returns within 365 days of purchase when the item is in its original condition, with packaging & labels, unopened and unused. This does not include food or any other perishable items.

All returns within the 365 day period are required to include your receipt. Once we have received and accepted the returned item, a credit will be issued. Shipping or return shipping prices are not included in the refunded price.

You need to include the Returns & Exchange form, along with the item(s) you are returning in their original condition and any packaging that came with it. Please note that whilst individual packaging can be opened, the box or container must not be ripped, damaged or the seals removed in order to be eligible for a refund, exchange or credit. 


Where items are found to be faulty or damaged, a replacement item will be sent to you at our cost. Claims need to be made within 7 days of receiving the product.  If you do not wish to have a replacement item sent, we are more than happy to provide you with a refund. Please return the item to: 

Aquarium Spare Parts
PO Box 10 Daw Park SA 5041

Return postage will be reimbursed where items are received in a faulty or damaged condition.


We understand that accidents happen. Please notify us of any errors made to your order ASAP.

Please be aware that if the item/s have already been collected by Australia Post a change of address may not be an option.

Aquarium Spare Parts does not take any responsibility for incorrect address provided and any loss it at the expense of the buyer.

We will also endeavour to get the item returned to our warehouse where a redelivery fee may apply.


Free shipping applies on over 400 across our website with Australian shipping addresses only.

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Offer cannot be used in conjunction with any other discounts.

Orders will arrive to destinations within 3-7 business days with Authority To Leave only. If you do not wish to use this delivery method, other chargeable methods will be available at checkout.

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