The FLEX 32.5 US Gal. (123 L) 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. Mobile device controlled Aquasky LED operates via FluvalSmart App. Customizable adjustable light specrtum (Color temperature ranges from 3000 – 25000 K) Multiple weather effects – storm lightning cloud cover and more 24-hour programmable light timer mimicks the natural cycle of the sun and moon. Optional space to add a second Aquasky LED (sold separately) Powerful 3-stage filtration system. 2 independent media chambers for maximum superior water quality. 2 oversized mechanical (foam); chemical (carbon); and biological (Biomax) media – all included. Twin output nozzles can be adjusted to create customized water flow. Hidden 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 only.