Well, maybe not that big... King Richard is about 9 inches long.
Both of my orandas are completely blind, which doesn't matter in an aquarium, because they can still find food by smell, and hear me coming to feed them.
I hesitated to post the aquarium photo, instead of the bowled photos. I know someone is going to tsk at me for keeping the aquarium sides covered with algae. But I do. The window I cut in the algae is six inches wide - appx. So its for the sizing.