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 colors. Fully 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 quality. Oversized mechanical (foam) chemical (carbon) and biological (Biomax) media included. Multi-directional dual outputs for customized water flow. Hidden rear filter compartment. Stylish honeycomb wrap conceals water line and sides of rear compartment. Easy feed top cover opening. Bold curved front design. For freshwater use only. 41.5 x 39 x 39