Hey all! So, living in Japan, the overflow systems on reef-ready systems are still kind of stone-aged. In the pic attached, you see exactly what my system has. The down pipe is surrounded with a removable square overflow box. I was thinking about removing this white overflow box and cementing rock around the down pipe, giving me just a bit more realty, while removing a nasty eye sore. Anyone have any suggestions? Maybe if you know something premade, before I go ahead with the difficult task of cutting up rocks and trying to fit them properly.
TIA
TIA