External Filter System (Canister)

External canister filter system is too expensive filter system. Why say the most expensive? Because this system requires a pump machine called the canister and the canister is quite expensive ranging from 1.5 million to 3 million rupiah. The advantages of this system is the ease of us to clean, drain and replace filter media. But the performance of this filter is considered less than the maximum for the aquarium size 150 cm and 200 cm.