Awesome! Keep it away from your AAA card.
My 10g with the dwarf cajuns and the baby 'krebs has tape covering the airline-thick gap along the back to keep them in and there are no gaps between the glass lid and the frame. The new 20g has a tight glass cover that a dwarf shrimp couldn't get past. Plus, I don't think any of my crays are as badass as yours (or ever will be!).
Can you post a photo of yours? I'm interested to see which species you've got.