sera siporax Professional 15 mm (Supplied in a resealable plastic bag)
For crystal clear water in freshwater and marine aquariums as well as in ponds
sera siporax Professional is a highly effective, fully biological filter medium for achieving crystal clear water in aquariums or ponds. Suitable for all internal, external, trickle and pond filters.
The structure of sera siporax Professional is open pored, three dimensional and functional. This structure allows the formation of very effective biofilms that grow into the pores and coat their walls. The pores have the ideal size for ensuring long term water flow and supply of the bacteria. The biofilm also breaks down nitrate (denitrification) deep within the pore structure where oxygen levels are lower.
Not only nitrifying and denitrifying bacteria grow in the biofilm of sera siporax Professional, but also ones that break down organic matter. Dying bacteria therefore do not clog the pores but are broken down biologically. The biofilm grows and shrinks according to water pollution and thus adapts to the requirements. sera siporax Professional is therefore the only filter material that cleans itself biologically. The pore structure is perfect for being settled by bacteria.Due to the special pore structure, sera siporax Professional develops its own ideal water current. It can therefore be used in filters with high and low flow rates, and in trickle filters.
Open your eyes when buyingWhat makes a good filter medium?
Whether in an aquarium or a pond: a high quality filter material is essential. Along with the filter, it ensures crystal clear water and unobjectionable water parameters. This is enough of a reason to consider the selected filter medium carefully. The important feature is not the price or the material surface, but the performance. Experienced aquarists or pond keepers therefore choose sera siporax Professional.

Shipped in a sterile, sealed zip lock bag and a rigid cardboard box

sera siporax 25 mm (refill pack)Ideal for marine, saltwater aquarium and all garden pond filters
sera siporax pond is a fully biological filter material for almost all garden pond filters.
1 liter sera siporax pond provides as much settling area for bacteria as, approximately 34 liters of clay filter material. Prefilter with sera biofibres coarse to prevent large particles from entering the biofilter.
sera siporax pond provides bacteria an extremely large amount of open-pored tunnel structures. This allows an ideal supply of the bacteria with nutrients and a smallest amount of fresh water. There are oxygen-poor conditions within the tunnels. This makes the bacteria crack nitrate to get enough oxygen. Consequently, they continuously break down nitrate, and the pond water remains low in nitrate.
The surface of one liter of sera siporax Professional has almost as much biological breakdown power as 34 liters of clay filter material
Calculation formula for sera siporax pond:
One single liter sera siporax pond is sufficient for purification of 1,000 liters pond water with 20 pond fish of 10 cm length each or a comparable stock (representing approx. 1.5 kg) of fish fed with up to 40 g high quality food per day] and release it from organic pollutions in long terms

Shipped in a sterile, sealed zip lock bag and a rigid cardboard box