The Fluval Flex not only offers contemporary styling with its distinctive curved front, but is also equipped with powerful multi-stage filtration and brilliant LED lighting that allows the user to customize several settings via remote control. Key Features : 7500K LED lamp supports plant growth and enhances fish colorsFully adjustable White + RGB LEDs for endless color blends FLEXPad remote can also control fun special effects (i.e. fading cloud cover, lightning bolts)Powerful 3-stage filtration for superior water qualityOversized mechanical (foam), chemical (carbon) and biological (Biomax) media includedMulti-directional dual outputs for customized water flowHidden rear filter compartment Stylish honeycomb wrap conceals water line and sides of rear compartmentEasy feed top cover openingBold curved front designFor freshwater use only