Marineland 2-In-1 Penguin Pro 175 275 & 375 Aquarium Bio-Foam & PreFilter

Freshen up your tank with the Marineland 2-In-1 Penguin Pro 175 275 & 375 Aquarium Bio-Foam & PreFilter. The two-in-one filter foam can be used in two ways—place it inside your Marineland Penguin Pro 125, 175 or 275 Filter (each sold separately) to screen out dirt and debris and support the growth of beneficial bacteria, or use it as a prefilter to help protect your fry. Any way you use it, this filter foam boosts mechanical and biological filtration for premium clarity. Rinse foam monthly or as often as needed in your established aquarium water to protect good bacteria.

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