I can't tell anything by the pics, 1st few look like old pieces of peaches in heavy syrup, and (at least on my computer,) are so dark they look like blaclboards,
but from what some of the guesses were, here are a couple images to help compare.
1sr Australoheros sp red ceibal
2nd Hypsophrys nicaraguense
Herotilapia multispinnossa