SL-Aqua Aqualex new premium biological media is extremely porous which provides very good surface area for good bacteria growth. The media has been tested to have 60% water absorption, almost twice the speed of the usual filter media. It does not affect water parameters and is extremely safe for your livestocks!
What does high absorption do? Having high absorption means that the media has a huge surface area that allows water to seep thru the media. A huge surface area would mean that each ball can contain more bacteria than the usual ones.