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.
Material: Environmental Plastic
Dia: 18mm / 0.7in
Package Size: Approx. 13 * 9 * 2cm / 5.12 * 3.54 * 0.79in (L * W * H)
Package Weight: 25g / 0.88oz
20 * Bio Balls
*Free shipping availability will depend on your postcode, this information will be available at checkout.