Bio Cup R Rectangular Filter Media Cup - Multipurpose Reef Tank Filtration
- EshoppsRS-200 Reef Sump 4th Gen$389.98
- EshoppsRS-300 Reef Sump 4th Gen$499.98
- EshoppsAF-200 Alpha Fuge Sump 4th Gen$574.98
- EshoppsAR-300 Aqua-Fuge Refugium Sump 4th Gen$529.98
If you're sick and tired of swapping out those pesky filter socks on your Eshopps brand sump, the Bio Cup R Rectangular Media Basket is for you. The Bio Cup R is designed to replace rectangular-shaped filter socks like those found on select Eshopps sumps. The media basket can then be used to house your favorite mechanical filter material or media.
Bio Cube R Media Basket is compatible with Eshopps Sump Models:
Bio Cup R Specifications:
- 6" x 3.5" x 7" with 1/2" lip on top
- Can handle up to 500 GPH of flow
- Fits sumps using 4" x 7" rectangular filter socks
Just like any of the round filter media cup upgrades, the Bio Cup R can accept a wide range of media. In order to act as a direct replacement for your filter sock, most hobbyists will use some kind of filter pad but you could also use your favorite biological media or a combination of both.
The benefit of a filter media cup over a filter sock is the ease of maintenance. Rather than pulling your filter sock every few days and cleaning it out, you can just toss the disposable filter material used in the Bio Cup R and replace it with new as needed.
In a pinch, you could also add chemical filter media (carbon, GFO, and Specialty Media) to the cup but it must be contained in a filter media bag so the tiny media does not escape the large holes in the cup. It's not a bad idea to layer a piece of filter pad over the top of your media bag to help disperse water and remove debris. This approach works great for specialty media like Chemi-Pure or Seachem media but a media reactor is still the preferred route for carbon and GFO.
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