Sunset is an optimal time for Pterois volitans to begin feeding because this is when activity in the coral reef is highest. At sunset, all of the day fish and invertebrates make their way to a resting spot for the night and all of the night fish come out to begin feeding. With all of these creatures around, the lionfish need not invest much energy to find a meal. They simply glide upwards along the rock and coral sneaking up on unexpecting prey from below. While moving slowly towards a small fish, Pterois volitans uses its open pectoral rays to shield the motion of its caudal fin. This shielding along with the cryptic coloration of the predator prevents the prey from becoming alarmed. Although we find the striped colorful pattern of the lionfish obvious and easy to see in an aquarium setting, in the coral reef this colorful pattern allows the fish to blend into the background of coral branches, feather-stars, and spiny sea urchins.