The Fluval FLEX 123 L (32.5 US Gal) makes an exciting addition to Fluval's bold curved aquarium series. It comes equipped with a mobile device operated Aquasky LED that offers total control over brilliant custom colors, multiple dynamic effects and a programmable 24-hour light timer.In addition, this all-new FLEX includes a built-in filtration system with 2 independent multi-stage chambers for maximum cleaning efficiency.    Key Features :Mobile device controlled Aquasky LED operates via FluvalSmart AppCustomizable, adjustable light spectrum (Color temperature ranges from 3000 - 25000 K)Multiple weather effects - storm, lightning, cloud cover and more24-hour programmable light timer mimics the natural cycle of the sun and moonOptional space to add a second Aquasky LED (sold separately)Powerful 3-stage filtration system2 independent media chambers for maximum, superior water quality2 oversized mechanical (foam); chemical (carbon); and biological (Biomax) media - all includedTwin output nozzles can be adjusted to create customized water flowHidden rear filter compartment provides separate media access Convenient easy-feed door opening with option to add PF2 programmable feeder (Item #10786 - sold separately)Honeycomb print camouflages water line Custom cabinetry available (sold separately) - Black (Item# 14985), White (Item #14986) For freshwater use onlyIncludes :Glass aquarium with coverAquasky LED lighting systemSafe, low-voltage transformerCirculation pump with output nozzle2 x Foam filter block with handle (A1375)2 x Activated carbon insert (A1377)2 x BioMax insert (A1378)