Do I need to adjust my filter media for operating a saltwater aquarium, or are the filter media fitted at the factory just as suitable for saltwater use?

The filter media filter floss, carbon sponge, fine filter sponge and coarse filter sponge that are fitted at the factory can also be used for saltwater aquariums. The optional filter media such as Amorax, Carbax, Cirax and Phorax are also suitable for saltwater aquariums. The filter booster bioBoost and the nitrate remover Nitrax, on the other hand, should be used for fresh water aquariums only.

Can the Bioflow filter that is installed at the factory also be used for saltwater aquariums?

Yes, the Bioflow filter is also suitable for saltwater aquariums. For the optimised operation of a saltwater aquarium you will also need the JUWEL SeaSkim and a ceramic axle for the pump in the inside filter. The JUWEL SeaSkim contains a low-noise and powerful Eccoflow SeaSkim 1500 pump that ensures the formation of extremely fine bubbles and therefore guarantees effective protein skimming in your saltwater aquarium.

Where do I insert bioBoost, Carbax, Amorax, Cirax and Phorax in my filter?

"BIOFLOW M/L/XL: bioBoost should be placed directly underneath the filter floss. We recommend that Carbax is used in the upper filter insert, between bioCarb and Nitrax. Amorax, Cirax and Phorax should be placed at the top of the lower filter insert. BIOFLOW SUPER: bioBoost should be placed directly underneath the filter floss. Carbax, Amorax, Cirax and Phorax can be used in the upper part of the filter basket, instead of the Nitrax sponge. Please refer to our change flyer in the download centre for information about the exact placement of our filter media."

When should I use the optional filter media?

In addition to the filter media fitted at the factory, JUWEL Aquarium offers a range of additional filter media. 1. When newly setting up or replacing your other filter media, we recommend using the filter booster bioBoost that immediately activates the new filter media and accelerates the filtration performance in your aquarium. 2. If your aquarium shows increased ammonium values, you should used our filter medium “Amorax”. It quickly and effectively binds ammonium, prevents the formation of ammonia and promotes the vitality of your fish. 3. If you perceive odour formation in your aquarium, or if the water changes in colour, you should use the filter medium “Carbax”. 4. The filter medium “Cirax” provides an even greater surface for filter bacteria to settle, than the fine filter sponge bioPlus, and it thus provides for a consistent filtering effect in your aquarium. 5. If your aquarium shows increased phosphate values, you should use our filter medium “Phorax”. This medium removes phosphates from your aquarium, and it effectively reduces algae growth and promotes improved plant growth.

Why is my pump so noisy?

There may be various different reasons, if your pump is unpleasantly noisy. Please check that your pump is positioned correctly, and make sure to observe the 6 to 8 week run-in period when taking your Bioflow filter into service. To ensure optimised functionality and running smoothness for your pump, we recommend that the pump is cleaned on a regular basis, and that wear parts such as the impeller and axle along with the rubber bearings, are replaced every 12 months.