Lens suggestions for good coral shots?

[Albertan22]

So my wife picked up a starter DSLR camera (Nikon D3000) a couple weeks ago. The camera came with a kit 18-55mm lens, but it just doesn't seem to have enough zoom. My wife wants to pick up a 55-200mm lens for her purposes, will this work out to be a nice lens for reef tank photography, or should I be looking at making my own lens purchase for reef tank photos? What lenses are people using to get nice shots in their tanks?