Wow, that is a really cool tank. Would be great planted with some snails and ghost shrimp. Of course, there will be plenty of those with 5 goldfish in them, very unfortunate. But It could be really nice if properly stocked. At least they make an attempt at advising stocking. I wouldnt do guppies or platies in something this small (as they suguest). But at least they dont show it with a pleco and tetras.