Features:
for fish tanks, to promote exchange and increase dissolved levels.
for tropical fish farms, koi , waste systems, etc.
For use with /dry filters (here is not included), to improve biological filtration.
Aiding in the critical -exchange process that is needed for successful biological filtration.
Specifications:
Color: Black
Material: Environmental
Quantity: 100pcs
Dia: 18mm / 0.7in
Package Size: Approx. 21 * 14 * 2cm / 8.27 * 5.5 * 0.79in (L * W * H)
Package Weight: 83g
Package List: H14024
100 * Bio Balls