Internal Filter : -

It's very important in aquarium tank. It clean the water and also generate oxygen in tank.

Its have different Sizes, Power Watts, L/H and working capacity option. Some filter have UV option to kill gers in water.

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Canester Filter / External Filter :- (Balti Filter)

It's local common name is " Balti Filter " . For a big aquarium its very usefull. It has different sizes with UV Light option. Easy to clean water.