This is currently the only described member ofthe genus and despite having a wide distribution, it's not particularly common in Lake Malawi. Correspondingly it's not seen all that often in the hobby either. It's beak-like mouthparts are specially adapted to allow it to hunt smaller fish among crevices between rocks. It can also extend the mouth in all four directions at once, allowing it to swallow prey up to around 4" long!

As well as hunting amongst rocks, Aristoch…