I'm not saying buy an fluval edge but expand on the idea. Make it bigger and add an overflow (many have done this). You could also center the overflow instead of having it at the back to allow for 360 viewing, run an extra dummy pipe in the overflow for cords. You're likely going to light the tank so it has a partial lid anyway and you can cover the overflow with rock. Another option is a
zero edge tank. Either way you'll have access from the top with the same effect.