Looks like a pack of frankies to me. I'm counting 11-13 scales between what I think is the lateral line and the dorsal fin on all the fish. Better pics would help make it more sure.
Still though, that's an unusual looking fish and I'd snap him up.
Hah thanks man! Always felt good to have you here. Alright definitely will take him now. Oh ya one quick question, if you can only choose one type of fish (Dorado or ATF) preferably in shoal of 3, which will you go for?
Historically, my answer would have been ATF. At present however, I find myself with no tanks and no fish. If I were to start over again, I'd probably do a dorado just for the challenge of something new. I've kept all of the ATF species. I invested years of time and thousands of dollars into ATF. I've never had a chance to own a dorado. I'd like to do something new.
FWIW though, by all reports, (especially those coming from my very respected colleagueDB junkie ) dorados do NOT do well in packs.
I have kept 2 dorados 16"-18" successfully along with other tankmates.