An interesting lighting alternative for your biOrb is the MCR Light Accessory. You can select your preferred color or configure the Multi-Color Remote (MCR) operated LED light to gradually fade across the color spectrum. Your aquarium may be illuminated with any of the sixteen pre-set colors by just pressing a button. You can choose the day and night settings for a more natural scenario or unwind as the aquarium gradually fades over the complete color spectrum. The brightness can also be adjusted.