This aquarium is one of our classics. From the beginning we thought of a small aquarium (45x45x45 cm) but that could have the same benefits as a large reef aquarium. It has an optimized sump to house the minimum essential elements to have a successful project. We call it Open because we want it to be open to the accessories that its owner wants to use without being bound by the obligation to use those supplied as a set, which in many cases are poorly sized.