The internal filter of an aquarium is a filtering device used for aquariums, which is placed inside the aquarium to provide mechanical and biological filtration to maintain clear water quality and the health of fish. Here are some key information about the filters inside the aquarium:

Filtering principle: Internal filters in aquariums usually include mechanical filtration and biological filtration. The mechanical filter layer is used to capture and remove impurities, waste, and solid particles from water, making it clear. The biofilter layer provides biofilters for the growth of beneficial bacteria, which help to decompose and remove harmful substances such as ammonia and nitrates.

Installation method: The internal filter of the aquarium is placed inside the aquarium, usually fixed to the wall of the aquarium or other suitable position through suction cups or magnetic force. They are usually suitable for small and medium-sized aquariums.

Applicability: This type of filter is suitable for freshwater and seawater aquariums, and can be used in environments where fish, insects, and other aquatic organisms are raised. They can provide sufficient filtration and gas exchange to ensure good water quality.

Maintenance: Regular maintenance is the key to ensuring the normal operation of internal filters. Maintenance includes cleaning the mechanical filter layer, regularly replacing the filter medium, and monitoring water quality parameters such as ammonia and nitrate levels.

Flow rate and size: Choosing an internal filter that is suitable for your aquarium requires consideration of the volume of the aquarium and the required water flow rate. Different models of filters have different flow rates and capacities.

Additional features: Some aquarium internal filters may have additional features, such as adjustable water flow rates, heater slots, or UV sterilizers, to provide more comprehensive filtration and water quality management.

Aquarium internal filters are a common solution for aquarium filtration, providing effective mechanical and biological filtration to help maintain water quality and ecological balance within the aquarium. When selecting an internal filter that is suitable for your aquarium, please consider the size of the aquarium, the type of organism being raised, and the required filtration effect to ensure that it meets your needs.