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FX SERIES

FX SERIES

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Can I connect an inline heater model to my filter?

No. Fluval canister filters use ribbed flexible hosing, which is not ideal for installing such equipment.

Why do I have difficulty restarting my canister filter after cleaning it?

First, check your impeller and impeller shaft as it’s possible either of these are damaged and need to be replaced, or are very dirty and require cleaning. It’s also possible the impeller cover has not been reattached correctly. Finally, verify that the filter has been properly primed: always ensure that the filter output is above the water surface when priming.

I have a marine tank and noticed bursts of air coming out of my filter output. Should I be concerned?

Air input into your system is most likely coming from the skimmer. Fine air bubbles are gathering in the canister filter and are being ejected in bursts. Consider adding a bubble trap for your skimmer.

I’ve noticed decreased performance and the need for increased maintenance frequency on my canister filter. Am I doing something wrong?

This usually indicates an increased load on your filter due to either the growth of your fish, the recent introduction of additional fish, increased waste production (leftover food, excrement, etc.), or clogged filter media in need of replacement.

I replaced the impeller of my canister filter and noticed a small leak coming from the handle when shutting down. What should I do?

The leak is most likely from the canister O-ring. Before you purchase a replacement, remove and clean it with warm water. Thoroughly wipe the receiving groove in the filter with a soft cloth. Apply Fluval silicone lubricant (#A325) to the O-ring.

How does head height affect filter output performance?

FX series filters are closed recirculation filter systems: head height has no real impact on performance. The length of tubing and the types of filter media are key factors affecting filter output performance. We recommend never exceeding the specified vertical distance in your instruction manual as this will cause the filter to exceed the maximum head pressure value, which could cause the filter to leak and fail.

I change the carbon in my filter every couple of weeks. Is this too often?

No. It’s better (and easier) to prevent odors rather than having to remove them once they’ve accumulated. Some fish are messy eaters, or are more prone to producing large amounts of waste, so prevention is key.

Do you have any tips for fixing common filtration issues?

Aquatic expert Tom Sarac discusses the 6 most common filter problems, while providing helpful troubleshooting tips to resolve them.

I found a fish stuck to the intake of my filter. Is the flow too strong?

You don’t need to be concerned about your filter being too powerful for use with healthy fish, many of whom swim in natural habitats with much stronger currents. If a fish became stuck to the intake of your filter, it’s likely that the fish was already sick. Take note that you can adjust the filter output strength to suit your particular fish species.

I just purchased a Fluval canister filter for my well-stocked tank. Is there additional media required, other than what came with the filter?

Fluval Total Clear will crystallize the water and rapidly remove organics, providing better overall water quality. Also consider adding a coarse pre-filter media at the bottom of the filter to support improved long-term performance.

What’s the best combination of media if I’m keeping very messy fish?

For aquariums with species that are strong feeders and fairly messy in nature (i.e. digging habits), we recommend using Fluval Fine-Filter pad and chemical media (i.e. carbon) at the bottom level, Fluval Bio-Max in the middle and Fluval Pre-filter rings at the top level.

What motor maintenance should I perform regularly to ensure the longevity of my filter?

Learn how to properly maintain your FX canister filter motor from Fluval’s head aquatic expert.

What general maintenance tips do you have for this filtration series?

Learn valuable tips from our head aquatic expert on how to maintain and take care of your Fluval FX canister filter.

Why is the motor of my canister filter making a low, rumbling noise?

Noise originating from the motor suggests that the impeller assembly needs to be replaced. As the only moving part in your filter that operates 24 hours/day, the impeller does eventually wear and is therefore not covered under warranty. Also, verify that the filter has been properly primed (always ensure the filter output is above the water surface when priming), as this will help ensure trapped air is not the cause of the noise.

How do I know when it’s time to change my filter media?

Aquatic expert Tom Sarac provides guidelines on knowing when to switch out the most common Fluval media for your aquarium filter.

Why is my canister filter emitting bursts of fine air bubbles on my aquarium?

FRESHWATER: It’s important to perform regular filter maintenance (media rinsing and replacement) to prevent media from compacting, which can result in air accumulation. Also make sure to verify the inlet rubber hose connector that attaches to the siphon tube, which does dry out over time and becomes hard and non-flexible, thus requiring periodic replacement.

SALTWATER: This is probably due to your filter taking in the fine air bubbles introduced to the aquarium by protein skimmers. Make sure to use an effective bubble trap at the skimmer output or within the sump to prevent this from happening.

How much can the flow of my FX-series filter be reduced via the AquaStop valves?

You can safely turn down the output AquaStop by 50% in order to reduce flow without damaging the filter’s pump.

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2019-03-01T09:48:59+00:00

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