Purchasing biofilter material is misleading!
This refers to the price, which appears to be aimed directly at koi breeders. Even for smaller systems with 5,000 to 10,000 fish (such as Telapi), depending on the biofilter medium, you will need around 0.5 to 1 cubic meter of the usual biofilter medium for a flow bed filter and the same amount again for a settling tank that is connected upstream. This means you need to calculate for at least 1,000 to 2,000 liters (1 to 2 cubic meters) of biofilter medium.
You can find biofilters that we use and recommend in our online shop under Material.
| Model | PE01 | PE02 | PE03 | PE04 | PE05 | PE06 | PE08 | PE09 | PE10 | |
| Dimension | mm | φ12*9 | φ11*7 | φ10*7 | φ16*10 | φ25*10 | φ25*10 | φ5*10 | φ15*15 | φ25*4 |
| Hole Number | Holes | 4 | 4 | 5 | 6 | 19 | 19 | 8 | 40 | 64 |
| Protected surface | m2 / m3 | >800 | >900 | >1000 | >800 | >500 | >500 | >3500 | >900 | >1200 |
| Density | g/cm3 | 0.96-0.98 | 0.96-0.98 | 0.96-0.98 | 0.96-0.98 | 0.96-0.98 | 1.02-1.05 | 1.02-1.05 | 0.96-0.98 | 0.96-0.98 |
| Number pieces | Pieces/m 3 | >630000 | >830000 | >850000 | >260000 | >97000 | >97000 | >2000000 | >230000 | >210000 |
| Porosity | % | >85 | >85 | >85 | >85 | >90 | >90 | >80 | >85 | >85 |
| Dosing ratio | % | 15-67 | 15-68 | 15-70 | 15-67 | 15-65 | 15-65 | 15-70 | 15-65 | 15-65 |
| Membrane formation | take | 3-15 | 3-15 | 3-15 | 3-15 | 3-15 | 3-15 | 3-15 | 3-15 | 3-15 |
| Nitrification efficiency / day | g NH4-N/ m3 | 400-1200 | 400-1200 | 400-1200 | 400-1200 | 400-1200 | 400-1200 | 500-1400 | 500-1400 | 500-1400 |
| BOD5/BSB5 oxidation / day | g BOD5/ m3 | 2000-10000 | 2000-10000 | 2000-10000 | 2000-10000 | 2000-10000 | 2000-10000 | 2500-15000 | 2500-15000 | 2500-20000 |
| COD/CSB oxidation / day | g COD/ m3 | 2000-15000 | 2000-15000 | 2000-15000 | 2000-15000 | 2000-15000 | 2000-15000 | 2500-20000 | 2500-20000 | 2500-20000 |
| Temperature working range | ℃ | 5-60 | 5-60 | 5-60 | 5-60 | 5-60 | 5-60 | 5-60 | 5-60 | 5-60 |
| Life span | Years | >15 | >15 | >15 | >15 | >15 | >15 | >15 | >15 | >15 |
