hygger aquarium water changer filter has a 3-stage filtration system: Mechanical, chemical, and biological filtration. This effective filtration system keeps fish tank water crystal clean. A separate filter basket contains 3 layers of filter media: Sponge, active carbon pellets, and black bio balls.
Water flow adjustable
The max water flow rate of the bio aquarium filter is 158 GPH. You can easily rotate the knob on the outside of the cover on the top to control the water flow according to your needs. A must-have biofilter for a 5 to 30 gallons small fish tank.
Quiet aquarium filter
The built-in water pump of the aquarium filter works quietly, and the filter comes with a cover that will shut off most of the noise. The waterfall design enables filtered water to go back to the tank silently. You can only hear the water sounds when it’s working. The noise is less than 40 dB, and will not disturb the fish or your sound sleep.
Fit for most fish tanks
The filter case is at the back of the filter outside the fish tank. You can hang it onto most square fish tanks because it comes with a separate fix knob to make the clip of the filter fit the different thicknesses of the fish tank wall.
With a floating skimmer
There is a floating skimmer on the telescopic water intake tube which will be floating up when sank into the water. Visible impurities floating in the water will get into the skimmer house when the aquarium filter pump is running.
3-stage filtration to keep the water clean
Stage 1: Mechanical filtration
At this stage, the pumped-up water first goes through the sponge filter pad to filter out physical impurities such as fish manure, fish food, etc.
Stage 2: Chemical filtration
Premium black active carbon pellets start to remove odors, discoloration, and more small impurities in the water.
Stage 3: Biological filtration
Black bio-filter media balls, with more surface area. It’s good for biofilm formation and the growth of beneficial bacteria.
Voltage: 110-120 V / 60 Hz
Power: 12 W
Sound: < 40 dB
Max flow rate: 158 GPH
Dimension: 5.9 x 4.33 x 6.3 (inch)