What a beauty... I have one just like yours, roughly the same size. It's kept in a 36"x18"x16" grow out tank with Fluval 404 canister and eheim professional 2 canister. The water quality is pristine. Eventually it will go into my 60"x30"30" tank with 4ft sump and very powerful eheim pump and I will also use the eheim pro2 and Fluval 404. My previous 18" Dovii lived for 9 years in that 5ft tank. Just trying to get some time to reseal the big tank. All the best with your fish.