No doubt Oscars, but I'm taking a sabbatical from them as I've kept them continuously for the last 15 years, and I want to make a serious go at a planted tank. So right now in my tank would be my corys -
6 C. aeneus 5 C. leucomelas an 1 C. Schwartzi (got him accidentily with the leucomelas but he schools with them so he seems happy anyway).