For $175 the Metro Richmond Zoo will let you wade into its pygmy hippo enclosure for an up close and personal hippo experience. Why it matters: The money gets you the chance at 30 minutes with Poppy and her mom Iris — from the secure side of a safe barrier. The big picture: The Poppy Pygmy Hippo Experience starts this week and includes: A behind-the-scenes tour of the indoor pool part of the Hippo Haven habitat. A wade into hippo waters near the…