EHEIM Multibox - Aquarium Workstation & Maintenance Center The size of the box is ideal for acclimatising fish to their new environment as, once settled, they can be gently caught and released into the aquarium with a small net. This reduces the risk of infection, as no external water is introduced into the aquarium. Practical, hook on container for fragging corals, maintenance work and aquascaping. Can be used for carrying wet items (internal filters) to the sink or waste to the bin. Prevent dripping on your floor.