Internal Filter v External Filter

Internal Filter versus External Filter:

Internal filters are very common because they are powered by a water pump & have a box which contain a sponge. Internal filter sits within the fish tank. The water is sucked in & it passes through the sponge which removes debris & also the sponge holds good bacteria which helps in biological filtration. 


Internal filter versus external filter
Internal filter versus external filter


External filter is installed outside fish tank. Water is sucked out of the aquarium, where debris is removed & then it is pumped back to aquarium. External filters hold more media than internal filters, so they do not require high maintenance.


Pros & Cons of Internal Filter:


Pros & cons of internal filter
Pros & cons of internal filter


Internal filters are smaller & best for smaller aquariums. The running cost of internal filter is low. Also they are inexpensive. They can remove dirt very well & sponge filters are very helpful in fry tank because fry can eat leftover food attached to sponge. Internal filters produce lots of clutter in the aquarium. Sometimes you will have to replace the whole media, causing a new cycle. Internal filters can be slightly fiddly when maintaining.


Pros and Cons of External Filter:


Pros & cons of internal filter
Pros & cons of external filter


External filters require low maintenance because they are located outside aquarium & also they contain more media which do not require that much cleaning. There is a large variety of media available in external filters. Filters take up space & do not look beautiful in aquarium so external filters are located outside aquarium. External filters are more expensive than internal filters because they are more sophisticated. External filters are usually big. Media / sponges of external filters are expensive.
Internal Filter v External Filter Internal Filter v External Filter Reviewed by Fishaholic on August 27, 2019 Rating: 5

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