2" x 2.5" WYSIWYG and fully aquacultured by WWC! That's right this piece pretty much has the ability to stop all wars, even if it's just for a moment. But, yes it is that hot! The WWC Peacemaker Acro was originally grown out in our 500 Gallon at our OBT store around 7 years ago, so it is perfectly adapted to life in an reef aquarium! Place this Acro around mid way or about 275 par for best growth and coloration. To really speed up the growth rate of Acropora, target feed them by squirting a small amount of excellent quality SPS frozen food once or twice per week via a large syringe. Best results will be found when you place your recirculation pumps on feeding mode so that the polyps can "catch" the small particles of food floating by. If you don't have a feeding mode, set a timer as you do not want to forget to turn your pumps back on as that would be really, really bad.