Entry is easy: Just visit Totally Exotic Corals or Oregon and reply to this thread with a link to a coral you like on their website. You can enter once per day to increase your chance of getting drawn... just post the same link or another that you like from their website.
The drawing will be announced in this thread on August 15, 2012 and the winner have 3 days to post a reply to claim their prize.
Be sure to thank Totally Exotic Corals of Oregon for providing the prize for this month's giveaway!