Emphasize marine life with our latest marine crustacean enclosures - adaptable dividers enable you to customize the enclosure for corals, invertebrates, smaller marine fish or crustaceans as needed. The same dividers can also be used as lids to provide security against any potential escape attempts. The bottom tank functions as a sump, complete with DAS DLF Bio Spools with plenty of space for possible skimmer use (skimmer not included). It features a separate holding tank for cured Live Rock, viewable through a display window. LED Light Fixtures are included at no additional cost.