Though slower growing than the branching small-polyped stony corals, this greyish colored boulder coral (front center in photo) has grown noticeably in the past 8 months (compare to original Coral Reef Aquarium photo) The brown Seriatopora hystrix (front left) was also present in its present location (as an approximately 1 cm long inconspicuous fragment) in the original photo. The green Montipora digitata (front right) and the brain coral (top left-center) (and several others) are new in the last 8 months.