Well, my other fish are all in vancouver with the rest of my family. I have a couple of 15" plecos, a 22" aro, and a 10" oscar, but I don't know how safe the aro will be with this guy. He WAS in a tank with some oscars before, but he also could barely move in that tank, so who knows. I'd hate to see my pretty silver aro hanging out of this guy's mouth. There certainly is lots of room in there - there is another TSN larger than this one (only a couple inchs longer, but much thicker) about 5 hours drive from me, in a pet store. If they will give him to me for a steal I might pick him up too.