Eshopps PF-800 Overflow Box Corals Natural biological filtration media with

Natural biological filtration media with an already settled bacteria population

high-protein treat suitable for most tropical and select marine fish

source water and diatom bloom concerns

Part Number: HI731321

Phosphate and Silicate Removing Media for Clearer Aquarium Water

Eshopps PF-800 Overflow Box Corals Natural biological filtration media withEshopps PF 800 Overflow Box Eshopps PF 800 High Flow Hang On Overflow The Eshopps PF 800 Overflow Box connects a non drilled aquarium to an under cabinet sump, refugium or biological filter without requiring permanent modification to the aquarium. Its hang on back U tube design transfers water over the tank wall and into an external overflow chamber connected to the sump drain. Rated for aquarium systems up to 100 gallons and flow rates up to 800 GPH,