Above is the notorious fish (Aphyosemion elegans) that seems to be trying really hard to mask its genetic identity from us—I would ask him why, but unfortunately all we have of him is dead pieces of tissue. All the other fish had ended up working pretty decently, so what was different about this one? I didn’t have an answer and neither did my mentor. The only thing left to do was to try and experiment with different temperatures and solutions to hopefully land on exactly what