The appropriate base cabinet is included with the "Complete Aquarium Sets" for each tank where you can usually choose between different colors or types of wood. Depending on the manufacturer the technical equipment varies: whether Nyos, Red Sea, Waterbox or Aqua Medic - most aquarium sets include a technical basin in which the filtering, heating, etc. can be hidden away in the base cabinet. With the Max series, Red Sea has differentiated offers with or without a technical sump, with or without a lighting unit. The technical sump has the classic division into filter chamber, skimmer chamber and return chamber. Return pumps, skimmers and filter systems must be purchased separately.