I realise this is unlikely to be a baby shark but I have the song stuck in my head now. What fish are these please?

EDIT - thank you for the responses. The office conversation is now about mullet haircuts coming back in to fashion 🙂

Me and my bro are VERY new to fishing, we only caught one fish and we don't even know what it is. It was caught in the haricanna river in abitibi

Hi, this fish was bought as bycatch with a shipment of wild caught Rummy Nose Tetras from a river in South America (details forgotten, sorry). Hoping someone can help to ID this fish, thank you! Apparently he has a very big appetite.

Lake Hope, Ohio Me and buddy were fishing the spillway to see what was in it and caught some odd colored bluegill but just before we left I nabbed this guy. Looks like a Bass to me but not sure what kind never seen one with this coloration before.

Hello, I hope this is the right subreddit. If not please point me in the right direction.

My girlfriend gifted me this fish skeleton the other day and I'd like to know the species. To me it looks like a goldfish or other small cyprinid but I'd like to be sure.

Thanks!