SKU: 99691349191

Sera Siporax Professional - Biological Filtration

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Description

Sera Siporax Professional - Biological FiltrationSera Siporax Professional Biological Filtration Maximum optimization of biological filtration 1 Litre contains 270m2 of Bacteria growing surfaces! The original sera siporax Professional is suitable for use in both freshwater and marine aquariums as well as in ponds. Not depending on the kind of filter (internal external trickle filter), it maximizes the surface required for biological purification and provides the optimal substrate for the settling of

Sera Siporax Professional - Biological Filtration

Maximum optimization of biological filtration 

1 Litre contains 270m2 of Bacteria growing surfaces!

The original sera siporax Professional is suitable for use in both freshwater and marine aquariums as well as in ponds. Not depending on the kind of filter (internal/external/trickle filter), it maximizes the surface required for biological purification and provides the optimal substrate for the settling of necessary filter bacteria.

Filter and breakdown processes in the bottom ground of natural waters are very important. Organic waste are processed by micro-organisms and are thus available for the natural cycle as a nutrient for aquatic plants – pollutants such as ammonium, nitrite and nitrate are removed. Since little waste per water amount is formed in nature, the present bottom surface is sufficient for housing a sufficient number of micro-organisms.
However, an aquarium accommodates a small biotope in little space. It is therefore necessary to maximally enlarge the settling area for ensuring complete and safe breakdown of organic remainders.
sera perfectly put this into practice with the unique high performance filter medium sera siporax.

Unlike other filter rings available on the market, sera siporax consists of sintered glass. The unique material convinces due to a special three-dimensional pore structure. This allows maximum surface increase. At the same time, the fine pores provide ideal settling conditions for bacteria that break down pollutants. Since it is an interconnected system, the bacteria are permanently rinsed by water nd so can break down pollutants with best possible efficiency. Furthermore, the unique pore array allows for self-purification of the substrate and thus very long filter holding times.
In combination with specialized bacteria, sera siporax even fulfills a variety of other special tasks, such as algae prevention or directed water conditioning.

sera siporax was developed on the basis of water biological studies. It is based on the pore structure of the nitrifying layers in the natural aquatic soil. The manufacturing process and the structure have been patented worldwide.

According to university studies, one litre of this natural aquatic soil layer has about 270 m² of usable bacterial surface. This layer has a thickness of 1.5 to 2 mm and consists of sand and mud particles. sera siporax is ideally modelled on this soil. Each individual ring offers the bacteria about 1m² of colonizable inner and outer surface.

The pore structure of sera siporax is open-pored and three-dimensionally cross-linked. This structure enables the formation of very efficient biofilms that grow into the pores and line their walls. The pores have the ideal size to leave enough space to guarantee a long-term water flow and the supply of bacteria. In the depth of the pore structure, where the oxygen content decreases, the biofilm also decomposes nitrate (denitrification). sera siporax has the optimal pore structure for nitrate decomposition.

In the biofilm of sera siporax not only nitrifying and denitrifying bacteria grow, but also organic substance degrading bacteria. As a result, dying bacteria do not clog the pores but are biologically degraded. The biofilm grows and shrinks with the load of the water and thus adapts to the demand. sera siporax is thus the only biologically self-cleaning filter material. The pore structure is perfect for bacterial colonisation.

Due to the special pore structure, sera siporax develops its own ideal water flow in the pore structure. This means that it can be used independently of the external flow velocity. It can therefore be used in fast, slow and trickle filters.

Many competitors advertise with larger surfaces between 400 and 800 m² per litre. However, all filter media with a larger surface area have smaller pores. Smaller pores cannot be colonized by a biofilm because the bacterial film fills the small pores and blocks the water flow. The bacteria soon die due to lack of oxygen and nutrients and the medium is only active on the outer surface. Measurements show that the filter performance decreases drastically within four weeks. With siporax, the degradation performance still increases after four weeks.

For the reasons mentioned above, there is currently no filter medium that comes close to the degradation performance of sera siporax.

One litre of sera siporax has the same degradation capacity as 34 litres of ceramic or clay filter medium, making it the cheapest filter medium on the market. All other filter bodies are much more expensive than a litre of sera siporax in terms of the usable surface.

Shipping Notes
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Exchange/Return Notes
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SKU: 99691349191

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4.2 ★★★★★
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stlvapegurl
Natrona Heights, US
★★★★★ 3
Please go back to the original ball design and squeaker!!
Color: Pink Squeak Toy, Size: Medium, Color: Pink Squeak Toy, Size: Medium
Review update: I am updating my review for a few reasons. 1) The ball I ordered below was the 3rd time I purchased it. I originally bought one years ago, Pre-Covid, for my old pitty. My now Corgi, Jett loved that ball so I got a 2nd one for times when we couldn’t find the original. Well, the ball was slightly larger, the squeaker stopped working, and Jett preferred the original. 2) The newest one doesn’t squeak at all and is also slightly larger than the original. The original fell down the sewer drain that is in our backyard, and we lost the 2nd ball, so we ordered the ball again. My husband ended up having to retrieve the original from the sewer drain because Jett would pace around the sewer looking for the original. I ended up returning the 3rd ball because Jett doesn’t want anything to do with it & it doesn’t squeak. The video I provided is Jett squeaking the original that is at least 5-6 years old. I highly recommend the company go back to the original design that has not only stood the test of time and heavy use but is also the preferred size and for some reason has a much better, more reliable squeaker. I bought 2 of these balls for my Corgi mix and another for my son’s girlfriend’s Golden Retriever. Both dogs love the ball. They love the squeak and the ball is very durable. The ball doesn’t easily squeak by hand but will when they bite down on the ball or when it bounces. Speaking of, it has a decent amount of bounce to it too. Our dog loves to jump in the air to catch it after it bounces off the ground. I highly recommend this ball for medium and large dogs.
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Reviewed in the United States on December 24, 2023
D
Verified Purchase
DDT
Lake Worth, US
★★★★★ 5
Great fun for our dogs!
Style: Original
My dogs can’t get enough of this very noisy ball. We have one outside and one in their playroom. It is very noisy. It is very hard. So, I’d say a room with fine furniture is not the place for it. Ours bang it around pretty good. Our boxer did split one, biting it. But, she’s a serious chewer! Our other dog carries it around sometimes but hasn’t been able to damage it yet. So, I’d say for most chewers it’s going to last a long time. It’s a great toy but in most households I’d say basement or outside. Again, it’s hard and did ding a few baseboards.
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Reviewed in the United States on March 27, 2026
L
Verified Purchase
Luna Cherry
Louisville, US
★★★★★ 5
Superb!
Style: Original
My dog absolutely loves this ball. It's too big for him to fit all the way in his mouth, so it's held up pretty well and still makes the sounds.
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Reviewed in the United States on May 31, 2026
M
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Matthew
Charlottesville, US
★★★★★ 4
Fun, but buy a couple of them
Style: Original, Style: Original
She loves them. Great toy, but the product can’t hold up- purchased 4-11-2026
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Reviewed in the United States on April 15, 2026
K
Verified Purchase
Kay Cee
Lexington, US
★★★★★ 5
Durable, Rugged, Dog Approved Fun!!
Style: Original, Style: Original
This thing is durable and worth every penny! I bought this over 5 years ago for my rescue and he STILL loves it. He plays with it near daily and it's got a LOT of love-work scrapes, scratches, and scuffs. But it still works perfectly!! Because he's on the medium side, he can't quite bite down on it. Not sure how it'd hold up to heavy chewers with larger mouths. But he can play with this solo for ages and has SO MUCH fun. We love to listen to his "conversations" as he gets into it with this ball. It's been a winner since the day we took it out of the box. It's also the longest lasting toy we still have! Everything else either wore out, was destroyed, or broke. This battery-free ball has made the cut for us.
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Reviewed in the United States on April 2, 2026

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