What would you want your dream tank to be? Would you do a planted tank? Or a theme? For me personally, I would do a japanese theme or a Gozilla vs Kong theme, I know weird, it would look better than it sounds lol.
300 Gallon at least ... and having both tanks side by side ....Freshwater tank and Reef Saltwater Tank but of course to have it both must at least have a decent garage or shed .. perhaps.
With unlimited plugs points , with an arms length of tap water sink nearby that could connect easily and not to forget perfect garden at the back of the garage where all the FIsh tank water can just flow out when performing water change.
Now am I talking about dream garden like already ? ok enough said let me find my sinking pellet.
a whole planet, self sustaining. a freshwater water world seperated by a huge natural barrier at places for different hardness of fish.
yeah i want the Earth but mostly water lol