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1 bio ball,filter media
FILTERING PRINCIPLE OF BIO-BALL
This is a super bio-ball with sponge inside,it can not only provides the maximum surface area for nitrifying bacteria growing,but also promotes gas exchange and upgrade oxygen level.It is save for freshwater and saltwater aquarium.
!)different size of bio ball, pure bio ball and sponge inside bio ball
2)large area for the growth of nitrobacteria
2.we have other different size of bio ball:32mm,42mm,48mm,26mm,36mm,46mm,56mm,76mm
quantity:18pcs /inner box
qty/ctn:48boxes
gross weight:8.7kg
net weight:8.3kg
box size:44.5*30.5*47.5cm
XY-360 bio ball with sopnge filter