Various urchins are among our favorite invertebrates to introduce to our reef tanks as part of the so-called ‘Clean Up Crew’. Among these the mild-mannered and attractive tuxedo urchin, Mespilia globulus, is one of the best since it grazes all manner of undesirable algaes, and don’t tend to knock corals and frags over, the way … Continue reading Don’t Let Urchins Carry Corals Around Your Tank!