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Xinyou biochemical sponge filter


Brand : Xinyou

Model : biochemical sponge filter

The Xinyou sponge filter provides mechanical and biological filtration for saltwater or freshwater tanks.

Sizes available

xy-180 : 7.5 (diameter) x 10 (height) cm
xy-280 : 12 (diameter) x 10 (height) cm
xy-380 : 12 (diameter) x 16 (height) cm


Xinyou biochemical sponge filters can be used for saltwater and freshwater tanks. 

For saltwater, most of aquarist use them inside a quarantine tank. For freshwater, it is a great addition to help clean the water.

Our method to use it inside a quarantine tank

Let your sponge filter seed for weeks in your main tank (ideally in your sump). Once you setup your quarantine tank, add it inside, your quarantine tank will then have plenty of nitrifying bacteria and be ready to receive your livestock.

Your water quality parameters (ammonia and nitrites) will be handled immediatly by the nitrifying bacteria of the sponge filter.

If you just started into the hobby and do not have an established tank, it is recommended to find a relative who has an established tank to help you with the nitrifying bacteria.

Some tips

Before use, soak the sponge inside RO water to give it a first use clean.

Squeeze the foam inside aquarium water to remove any trapped air bubbles, it will help the sponge to stay submerged.

You can use it with an air pump, the air-driven system will create a suction and will allow the sponge to capture floating particles which will be transformed into harmless substance by aerobic bacteria.

If you have to clean the sponge, always rinse it using drained aquarium water. Do not rinse it using tap water, as it will kill your nitrifying bacteria.


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