@2OceansAquarium ... wanna have a stab at IDing this fish? I took the photo at Mnemba Atoll, Zanzibar in 2013 and I have yet to ID it properly.
@PedalRaymond We happen to have a team member who recent visited Zanzibar AND is a fish expert. Will get back to you with an answer.
@2OceansAquarium Great! I look forward to that.
@PedalRaymond Ok, so we think it's a black-banded trevally (Seriolina nigrofasciata). It appears to be displaying its stress colours, which is why it might not have been as easy to ID. Here's a pic of an unstressed one in a similar orientation: spain.inaturalist.org/photos/2090754
@2OceansAquarium So interesting. Thank you. My gut feeling was that it was one of the kingfish family, but I couldn't find it in any of my fish guide books (ja, I'm old fashioned and still have books) so I just wasn't sure. Mystery solved. 👍😀