I have been using it for several years and in my case day and night are different. Helps filter out organic waste that cleans the tank. It can be recharged up to 10 times depending on the reservoir, bioburden and maintenance. I've managed to top up my 4 times in the last two years so it really saves money but in my case I have a big bio load and I think it's better to get a new one. It still works, but the color after charging shows that it's almost used up. I use this in a planted aquarium with no problems. It will not reduce or remove your enzymes, so it is safe to use in a planted aquarium. Purigen and/or Matrix will keep your tank clean and your fish happy and healthy.
KEDSUM Quiet Rechargeable Battery-Operated Aquarium Air Pump With Dual Outlets - Perfect For Fish Tank, Outdoor Fishing, Transport, And Emergencies
28 Review
Humidifier / air purifier "Fanline Aqua VE400" with an ionizer, with a capacity of 410 gr/h
44 Review
KEDSUM Battery Aquarium Air Pump: Ultra-Quiet Rechargeable Fish Aerator with Dual Outlets - Ideal for Fish Tanks, Outdoor Fishing, Fish Transportation, and Power Outages
35 Review
Powerful And Quiet Submersible Pump For Aquarium, Pond, And Hydroponics: KEDSUM 660GPH Pump With 6Ft High Lift And 3 Nozzles
29 Review
Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review
Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review
π U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
22 Review
Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review