DBLN8
Members
I know a lot of you guys use these. Seems like good prices.
http://www.amazon.com/AquaClear-50-...aGg3_OgO_0_0&ie=UTF8&psc=1&smid=ATVPDKIKX0DER
http://www.amazon.com/AquaClear-50-...aGg3_OgO_0_0&ie=UTF8&psc=1&smid=ATVPDKIKX0DER