''An easy task.'', Arthur commented. The fish was inside the aquarium, which meant the he had to transfer it out of it very quickly. He pointed his wand at the small red fish and concentrated firmly on a bird. He flicked his wands and the fish started to morph. Its front flippers started to morph into wings and its back flippers into legs. Its tail became a small yellow tail and the rest of the bird transformed into a canary. He quickly levitated the bird out of the aquarium and put it inside the bird cage, along with the other bird.
He then looked at the other bird and concentrated into a fish. This was a more challenging task and he had to be much more quicker. He flicked his wand and the orange-brown bird inside the cage started to morph in the same was as the fish did, only opposite. In a few moments, a small clown fish fell on the floor of the cage. He grabbed it with his hand and quickly put it into the aquarium. In a few moments, after adapting, the little clown fish started to swim around. Arthur smiled. ''Done, professor.'', he said.