WYSIWYG Thick Well Seeded Halimedia, firmly attached to the rock chunk it is on as it grew in. While we lack the horticultural expertise to identify the exact species of Halimedia we know that it came from Indonesia, and that it has enormous blades compared to the more traditionally seen Caribbean Halimedia. There are some zoanthids still present on the rock, we have not seen then open in some time as the halimeda has been out competing them.