Opinions about Sera Siporax

Main advantage:

It is a box of tubes composed of a surface with fine pores with biofilms that store nitrifying and denitrifying bacteria, as well as species that break down different contaminating agents. In addition, the rings have an open structure to favor the circulation of water.

Main disadvantage:

They may be larger than expected, so if you have a small filter it may be necessary to break them to facilitate their use and prevent them from drawing too much attention to the interior of the aquarium.

Verdict: 9.8/10

For an affordable price, you can get this product in its presentation for 100, 200, 2000 and 20,000 liters of water. In addition, it includes the bacteria bottle to speed up its cleaning function.

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Main Features Explained


The tubes have a structure that is made up of tunnels made of molded glass through a sintering or heat treatment system, which creates strong bonds between the glass particles, forming compact pieces that will later serve as a filtering system. One of the most outstanding characteristics of its structure is its three-dimensional design, made up of fine pores that cover its entire surface and allow it to house specialized organisms that make it possible to absorb polluting agents.

On the other hand, its tunnel shape favors the feeding of bacteria, but also allows an optimal circulation of natural or artificial water currents, so it does not hinder or prevent the operation of other maintenance systems inside the aquarium. The Sera Siporax stands out among other aquarium filters due to its open structure, since traditional systems made of clay or ceramics generally have closed surfaces, which consume a greater amount of filter material, consequently increasing the cost. in aquarium maintenance.


The function of the pores of the tunnels is to offer the necessary conditions for the storage of specialized bacteria, since these are responsible for breaking down and degrading to minimum particles all the substances that are contaminants for the water, as well as those bacteria that are harmful to the water. fish and the space in general, thus improving the balance of the ecosystem.

These bacteria form inside biofilms that grow in the tunnels of each tube and multiply in denitrifying bacteria, which greatly reduce the nitrates present in the water. In this sense, all the pieces are permanently connected to each other, providing efficiency in water maintenance.

In addition to its high functionality, it is worth noting that bacteria and dead cells do not obstruct the pores of the tubes at any time, since they have a biological self-cleaning system, which maintains its structure and the internal surface of the aquarium in an optimal state., offering in turn long filtration cycles and guaranteeing its useful life for a long time. Likewise, the tubes prevent the development of plants and other elements that can be harmful to aquatic life, such as algae.

On the other hand, they can form the necessary substrate for some species of fish to grow on their surface, providing the correct conditions for their development, which is why, according to the opinions of some users, this package is the right complement for the best aquarium filter..


As we have seen, it is a package of rings that provide crystal clear water through a filter material with special biological qualities. It is a bag with 145 g of self-cleaning straws. This amount is recommended for aquariums of 100 liters, which is the maximum water capacity for domestic models. However, you can get it in its 290 g presentation that works optimally in 200 liters of water.

For professional environments with large spaces, it is available in a 2.9 kg version, recommended for a quantity of water up to 2,000 litres, as well as a 14.5 kg box for aquariums up to 20,000 litres. Also, you should know that for greater versatility and ease of use you can get rings with a diameter of 15 mm and 25 mm. It is important to note that its price varies according to the quantity of product.

In any of its presentations, this filter material is indicated for fresh or salt water, whether in ponds or closed aquariums. In addition, this model achieves specific conditioning according to water conditions on its own, so you can use it immediately after purchase, without the need for complicated installation or conditioning procedures.

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