Sera Siporax Professional Filter
The original Sera Siporax Professional is suitable for use in both freshwater and marine aquariums as well as in ponds. It works effectively with any type of filter—internal, external, or trickle filter—by maximizing the surface area for biological purification and providing an optimal substrate for the settlement of essential filter bacteria.
The kit includes a filter biostart containing purification bacteria that activate the filter immediately upon addition, starting the breakdown of pollutants such as ammonium and nitrite in the water.
Biological filtration in the bottom layer of natural water systems is crucial. Organic waste is processed by microorganisms and becomes available as nutrients for aquatic plants, supporting a balanced and healthy ecosystem.
| Feature | Description |
|---|---|
| Filter Type | Professional biological filter for aquariums and ponds |
| Compatibility | Works with internal, external, and trickle filters |
| Biological Starter | Includes bacteria for immediate activation |
| Water Types | Freshwater, marine, and pond systems |
FAQ
Can the Sera Siporax Professional be used in both freshwater and marine setups?
Yes, it is suitable for both freshwater and marine aquariums as well as ponds.
Does the filter require any special setup or activation?
The filter includes a biostart with bacteria that activate immediately upon addition, starting pollutant breakdown right away.
How does it support the natural ecosystem of an aquarium?
It provides a surface for beneficial bacteria to settle, helping to break down organic waste and pollutants like ammonium and nitrite, which are then available as nutrients for aquatic plants.


David Black –
I’ve used the Sera Siporax Professional in my 50-gallon freshwater tank for six months. The filter works smoothly and the water clarity has improved significantly. The biostart activated quickly and the tank has maintained stable ammonia levels without needing frequent water changes.
Angela Vaughan –
It fits well with my external filter setup. The bacteria in the biostart started working within a week. I noticed less fish waste floating on the surface and the plants are growing better now.
Jake Mills –
Used it in a marine aquarium with a mix of corals and fish. The filter handles the biological load well and keeps the water clean. No issues with odor or clogging after two months of use.