Dream bigger below the waterline.

The most inspiring reef builds are not just about the view through the glass. Thoughtful filtration, accessible equipment and a layout that suits your routine are all part of the dream. With its impressive 180 × 50 size designation, the Neptunian Cube Ultimate Sump System offers a large-format filtration solution to explore for an ambitious marine aquarium project. This is the sort of behind-the-scenes reef planning we love at The Polyp Pros — a dedicated place to think carefully about the equipment that supports your underwater world.

Product details

• Model: Neptunian Cube 180 × 50 Ultimate Sump System

• Listed size: 180 × 50 cm (confirm full external dimensions before ordering)

• Product type: standalone aquarium filtration / sump system

Plan the technical side with as much enthusiasm as the reef itself — the finished system will be all the more satisfying.

Before ordering, please confirm the exact height, internal layout, included components, connection sizes and fit with your aquarium. Display aquarium, lighting, skimmer, return pump and circulation pumps are not included in this listing unless confirmed separately.