Aquaclear Filters

Oct 22, 2002
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#1
I have a 4 foot aquarium which is 18 inches in both height and width. These are the fish I plan to keep :

Clown Loaches(3)
Tiger Barbs(10)
Cherry Barbs(8)
Pictus Catfish(2)

Is an Aquaclear 500 gallons per hour filter sufficient or do I need 2 of these filters?