Hello everyone. I am a long time lurker here, but this is my first post. I have read and enjoyed all the information you have shared and I really appreciate the community you have developed. I have always wanted to keep a pet octopus, and I finally started on my journey within the last year. So far I have one FOWLR tank and one nano reef tank up and running and I am currently very close to starting the pumps on the tank that will house my first octopus! I have a 65 gallon glass tank with an overflow in the center of the back wall. I have the double drain system draining through there (Herbie) and the return pump coming over the back of the tank. I have seen the guide for how to octo proof my overflow and I plan to make one of those covers sometime in the next few months while my tank matures. I have 160 lbs of black sand which comes to just over 5 inches deep. I have read the varying opinions on deep sand (Hi Colin!) and I understand that it poses somewhat of a risk, but I would like to try to make the most comfortable home for whatever octopus I end up with, and many of them would prefer a nice sand bed to dig into. I made some rocks of my own and sculpted them into 'Pride Rock' and will be adding live rock from my other display tanks in the next few days. (Currently it is only half full with some powerheads running) I will update with some pictures soon. Anyway, Hi!