I couldn't tell you, I am not familiar with most Japanese fish species so I don't know what most of these fish are either. Of what I do know, this tank has Japanese Lates, Kidako Moray and Common Octopus (which I believe are split to Octopus sinensis now?). Supposedly the tank also has Asian Sheepshead Wrasse and Japanese Angelshark, but I didn't see them. Most species in this tank should be in the stocklist, if it's on the list and from temperate Japanese waters, there's a good chance it's kept in the Seto Inland Sea exhibit.