Fluval Flex 2.0 Aquarium Kit Size:15 Gallon Starfish and urchins will feed

Starfish and urchins will feed on waste

If iron is provided in the ferric form then it must be reduced by the plant to the ferrous form before it can be utilized

5/8" air outlet

Approximately 50% of the nitrogen in Synthesis is derived from an organic source (urea)

Fluval Flex 2.0 Aquarium Kit Size:15 Gallon Starfish and urchins will feedDiscover the ultimate in freshwater aquarium design and flexibility with the new and improved Flex 2. 0 Series. Imagine customizable RGB + White LED lighting for endless color blends and mesmerizing effects. Picture a reconfigured, integrated filtration system with adaptable water output options. The latest Flex generation makes this a reality and even takes convenience to the next level with several new cover enhancements.