the white tune (never even seen it before) was exquisite... It's a marketing misnomer. The "white tuna" being served in DC sushi joints is almost certainly Escolar. Don't eat too much. I guessed another misnamed finner, Chilean Sea Bass, when I had some at Tono. There is a young chef beind the bar at Tono named Hiroki. I'm going back to sit in front of him. He used to work with Morimoto. Kaz was interesting but I've had better fish at lesser places. Must be the closing time hours I checked in at... The trend where any joint with a rice cooker is setting up a "sushi bar" in the dustiest back corner. Bad, bad, bad. Find the fish.