‘Must Have’ for Fish Tank Filter - Do you often have such problems? Worrying about small shrimp and small fish trapped in the tank. These premium pre-filter foam sponges can be easily attached to the inlet tube of the aquarium, which can prevent shrimp or fish from being sucked into the cartridge filter. Easy to use - Cover the sponge on the water inlet of the filter protector directly. They can easily be connected to the filter air inlet, such as filter, filter tank and other related filter equipment. Improve filtration - These aquarium pre-filter sponges can help trap particles and debris and extend the life of your filter media. Provides efficient water flow with less clogging for long lasting filtration. Quality Foam - These sponges are made of filtration foam, which is safe for fish. Good for both freshwater and saltwater environments. 8 piece set - Comes with 8 black colored pre-filter sponges. about. 8cm x 3.9cm cylinder, the inside diameter of the hole is 2cm.
