Hi there, I have a two smaller tanks (AIO waterbox & aquajapan) but I’m wanting to start a larger 80ish gallon tank. I have the tank but the cabinet I have it on cannot have a sump underneath (it’s a cat litter box custom furniture lol). I have limited space but I can possibly have a sump on the side of the tank. Is it possible to add a side sump, without drilling the tank? There’s hardly any space behind the tank so the side would be the best option. Since it would be seen, what’s also the best way to create a display sump/refugium? It would be a mixed reef tank. This is what the tank looks like!