The 1800 Altumate S2 is our latest range of oversized sump filtered aquariums that are the first in the world to be specifically crafted to be the perfect foundation for both freshwater and saltwater applications. This unique series, originally named after the incredible Altum Angel, is the ‘Altumate’ mixed application aquarium. The Altumate 1800 measures 1800mm x 750mm x 800mm.