In this week’s AquaNerd POTW, we’re focusing on an older picture from the archives, but one that is certainly worthy of bringing up again. It’s a closeup shot of an Acropora coral, and the detail in this shot is just amazing (at least in our opinions). It was shot with a macro lens and without a tripod, a potentially difficult combination of factors. Still, the image shows the corallites in various stages of being open, with some polyps side open and others retracted or closed. We can even see the distribution of the coral’s coloration in an almost honeycomb-like arrangement.