The issue with the glass vs acrylic agrument is that neither glass nor acrylic impact reef growth. The acrylic tank clearly has better lighting and flow, allowing you to keep better corals. Personally i think that we should choose the tank with the better equipment and look beyond the small detail of glass or acrylic. Once you get corals in the tanks i think people will be far more interesting in them than what your tank is made of. Or we could all have plain shrooms in pretty glass tanks!