50l biofilter (pressurised) typically 150 to 250l/min flow rate and good for smaller ponds up to a maximum of 20,000 to 25,000l stocked at hobbyist levels of fish. Bio filters pond capacity is indicative only – if unsure always buy the next biggest version. You can never ‘over do’ biological filtration, and you never want to ‘under do’ it either. Includes around 735 bio balls.
50l Bio Filter, Filled
50l biofilter, +/- 735 bio balls included