
Nothing to say. Rinse one out in ex-aquarium water, place it in a filter, and watch it absorb the nasty stuff in your tank. Replace it from time to time. Happy, healthy fish. Watch out for your water friends!

Powerful And Quiet Submersible Pump For Aquarium, Pond, And Hydroponics: KEDSUM 660GPH Pump With 6Ft High Lift And 3 Nozzles
29 Review

KEDSUM Quiet Rechargeable Battery-Operated Aquarium Air Pump With Dual Outlets - Perfect For Fish Tank, Outdoor Fishing, Transport, And Emergencies
28 Review

Sink filter Prio New Water Start Osmos OU380 white
79 Review

Humidifier / air purifier "Fanline Aqua VE400" with an ionizer, with a capacity of 410 gr/h
44 Review