The Entrance is Locked!

This is how to stand on the pool thingy (the one to Kani Cove) in Tierney's Aquarium. First, stand about a half centimeter from the pool. Then, switch animals. But, don't wait for your animal to appear. Click the pool. You should be standing on it. Glitch achieved! Wait... now HOW can you go to Kani Cove?