The D-D Aqua-Pro Reef 600 Cube is a compact, premium sump-based marine aquarium designed for reef keepers who want a high-quality system without taking up too much floor space. Its 60cm cube format gives a generous viewing area and plenty of depth for creative aquascaping. Aquarium Features The 60 × 60 × 60cm display aquarium is made from ultra-clear, low-iron glass with polished edges, black silicone joints and a clean, braceless design. A central black-glass ‘invisible’ weir is designed to blend into the rear of the aquarium, allowing a clear view from three sides. The removable D-D UltraFlow weir comb supports high water flow, while the twin-pipe overflow system and gate valve allow quiet, controlled operation. The aquarium also includes a black vinyl background, pre-fitted base mat, full pipework set, directional return outlet, flare nozzle and random-flow generator. Cabinet Features The matching cabinet is built in the UK and supplied fully assembled. Its contemporary, handle-free design uses push-to-open doors, fully adjustable soft-close hinges and quick-release doors for easy access during maintenance. Large openings at the rear provide space for pipework and cables while helping to ventilate the cabinet and reduce moisture build-up. The cabinet is available in a choice of standard and premium finishes. Sump Features The Aqua-Pro Reef 600 Cube includes a 6mm glass, multi-chamber sump with a large skimmer and equipment section and a dedicated return-pump chamber. It is ClariSea SK3000-ready, allowing a fleece filter to be fitted without modifying the pipework. An optional removable filter-sock holder can also be specified. A built-in 13-litre freshwater top-up reservoir provides a convenient water supply for use with an automatic top-up system. Specifications Display aquarium: 60 × 60 × 60cm Display water volume: 180 litres Total running volume: 212 litres Glass thickness: 10mm Sump: 45 × 46 × 38.6cm Sump running volume: 32 litres Top-up reservoir: 13 litres Top-up reservoir: built into sump Main overflow pipe: 32mm Emergency overflow pipe: 32mm Return standpipe: 20mm Recommended return pump: 1,500–2,000 LPH