Color:Black Key Features: Made of food-grade materials, Eco-friendly bio filter sponge and works great without noise【Fits fish tank size: 10 to 30 gallon】 Great way to clean and oxygenate your tanks Ribbing shape sponge holds a lot of beneficial bacteria Powkoo sponge filters comes with a media chamber which ceramic bio filter media inside, will help to remove harmful substance and increase oxygen level in your tank Can be used with different filter media to enhance water quality. Air-water outlet is adjustable so you can change direction and height of the water flow All parts of the sponge filter are detachable so as to cleanHow to set up 1. This product needs to be connected to the air pump, and equipped with a check valve on the airline tube to prevent water return to the air pump due to power failure. PLEASE NOTE: air pump, airline tube and check valve not included. 2. Please choose suitable air flow. Kind Reminder: Squeeze the sponge filter in tank water for 5 mins for 1st using, easy to digest form colonies of bacteria. Use aquarium tank water while washing sponge, do not rinse the sponge with tap water or hot waterPackage Contents: 1 x Powkoo Sponge filters 1 x Powkoo Retail Package Box
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