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Price: $3.99
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    Hydro-Sponge PRO Sponge Filter 

    *NOTE: these are the replacement sponges only.

    Reticulated foam sponge filters enhance aquarium biological filtration. Hydro-Sponge Pro Filters are upgraded to double the efficiency of the popular ATI Hydro-Sponge Filter. Versatile reticulated foam sponge filters handle higher flow rates without clogging, making it the ideal choice for use with aquarium powerheads. Durable reticulated foam is longer-lasting and is easier and faster to clean to ensure reliable performance.

    The difference between the regular and Pro versions is the porosity of the foam. The Pro Series is designed to take a power head as a replacement for the air supply, if you need greater throughput. With larger pores, the Pro series won't clog as quickly.

    Hydro-Sponge Pro Filters provide both mechanical and biological filtration. Raised filter sponge maximizes surface area exposure to optimize bacterial colonization and efficient breakdown of toxic ammonia and other nitrogenous waste. Weighted base allows for easy placement while preventing drifting. Use with an air pump or attach a powerhead to the included one inch diameter lift tube to suit your filtration needs. Modular design allows for stacking of multiple units to increase filtering capacity.

    Information

    • Redesigned aquarium sponge filters for improved bio-filtration
    • Use reticulated foam filter with higher flow rate powerheads
    • Beneficial bacteria colonize sponge filter for waste breakdown
    • Raised off bottom, no dead space.
    • Heavier base.
    • Can be used with or without an airstone.*
    • Easy to clean. Just rise and squeeze under cool running water.
        *not included
    Hydro-Sponge Size Comparison
    DescriptionSponge Size (inches)Tank SizeSurface Area (SQ. IN)
    Hydro-Sponge II4 x 2 3/4>20 gallonsSingle (49.4)
    Hydro-Sponge III4 x 3 3/4>40 gallonsSingle (74.4)
    Hydro-Sponge IV4 x 4 3/4>80 gallonsSingle (104.7)
    Hydro-Sponge V4 x 5 3/4<125 gallonsSingle (138.4)
    Overall Customer Rating of 2 Reviews:

    Great Product

    Rating:
    Pros:
    Cons:
    I ordered two of the Hydro IV sponge filters and I'm using them on my 75 gallon grow out tank and they keep it crystal clear.


    Great Product

    Rating:
    Pros:
    Cons:
    I ordered two of the Hydro IV sponge filters and I'm using them on my 75 gallon grow out tank and they keep it crystal clear.