Left 2pcs as of today. One fin flashlights are very seldom encountered in the trade, even in Japan. The commonly encountered flashlight species is the two fin flashlight, much more common, cheaper but also more challenging to sustain. One fin flashlights are quite costly so it's always best to do some research before buying them. Often it is necessary to feed them in total darkness before they adapt to feeding in daylight. Overall this is the preferred species even for public aquaria as they are easier to keep in captivity. Interested parties can contact me for orders, limited numbers due to arrive next week.