
I have been using it for over 5 years. I change the filler 1 time in 3-4 years. Since I have 3 baskets with filler in the external filter (1 basket - ceramic rings, 2 and 3 - SubstratPro), I advise you to change first in basket 3 (the last one in terms of water flow) when replacing, and then after about a month change in the remaining one - so you will least damage the nitrogen cycle in the aquarium.

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

Aquael Fan Filter Mikro Plus
35 Review

KEDSUM 330GPH Ultra Quiet Submersible Pump With High Lift And Grounded Power Cord - Ideal For Fish Tanks, Ponds, Aquariums, Statuary, Hydroponics - Includes 3 Nozzles And 1500L/H Water Flow
39 Review

πΏ Enhance Your Freshwater Fish Tank with Greenpro Java Fern on Driftwood Live Aquarium Plants
27 Review

Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review

π U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
22 Review

Jasonwell Magnetic Aquarium Fish Tank Glass Algae Cleaner - Floating Brush (L Size)
37 Review

π§² Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
34 Review