100pcs 18mm Biological Bio Balls Aquarium Fish Nano Tank

Features:

Great for fish tanks, to promote gas exchange and increase dissolved oxygen levels.

Great for tropical fish farms, koi ponds, waste water systems, etc.

For use with wet/dry filters (here is not included), to improve biological filtration.

Aiding in the critical gas-exchange process that is needed for successful biological filtration.

Specifications:

Color: Black

Material: Environmental Plastic

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:

100 * Bio Balls

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