Brand New from Real Reef Rock - Reef Ready Mix Boxes. You can now buy the perfect set of Real Reef Rocks READY for your size aquarium. No more debating how much rock you need, or what mix of rock you want, simply purchase the Real Reef Nano or Standard Mix Box and have a beautiful and complete aquascape GUARANTEED! If you want to add some interesting pieces to your existing aquarium, the nano branch, plate, shelf and new ARCHES are also available separately.