It skims off the protein layer which forms on the water surface, improving oxygen exchange. For filters 2215, 2217, 2226, 2228, 2250, 2260, 2315, 2317, 2326 and 2328, a T-reducing piece is necessary, so that a bypass is created a...

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March 06, 2010
"Marine Depot is AWESOME. I purchased my item and it was at my home in two days using normal UPS shipping!!! Thank you for your great customer service."
Michael

March 05, 2010
"Delivery time is unsurpassed. If you need it fast, there is no place faster than Marine Depot for standard shipping. They also have almost anything I could need for a reef tank."
Grey Seaslug

March 01, 2010
"They have so many great products and it’s a very easy website to navigate! From all-in-one to do-it-yourself, there is something for everyone! Awesome summaries at the top of every major heading! This company does a great job and the website is great!"
David Peron