The Fluval 4 Plus Underwater Filter is a powerful and economical submersible filter. It is easy to care for, quiet, and effective. The Fluval 4 is a great mechanical filter for any small aquarium, turtle or reptile tank with up to 57 gallons of water.
The Fluval 4 has a flow rate of 260 gph and uses 120v/10watts.
The double filter cartridge comes with two foam pads and allows for alternate replacement for continuous biological filter activity. The filter cartridge also has a designated area for optional media such as Polyester Filter Pads or Special Carbon Filter Pads (not included).It also features a clogging indicator that will indicate when the filter media needs to be maintained.
The 90 degree Swivel Spout directs the flow output and allows a change of flow pattern in the aquarium. The Water Flow Adjuster can be used to increase or decrease the flow output for feeding or other requirements. An Air Flow Control Device is also included to create a Venturi Effect for added aeration. This filter is specially designed to sit vertically or horizontally.
This is a great filter for our water turtles. The only problem I have with it is that it only has 1 suction cup to secure it to the bottom of the tank and that is on one end. My turtles are constantly messing with it. If another suction cup could be added to secure it to the bottom that would be great.
I use this filter in a 55 gallon aquarium with 5 turtles. It does the job beautifully. I clean it every four to five weeks, and that keeps the tank clean. This is my second fluval filter, and I am very satisfied.