So this morning I came down from my bed (It is a queen bunk bed, but instead of another bed being on the bottom there is a desk and that is where my fish are) and I was saying hello, and I swear they nodded to each other then they both began twirling and swimming really beautifully.
And last night I discovered that Yuuki is a little shark! I was doing a routine inspection of the tank, and Yuuki, being so utterly curious was in my way, and he is trained to follow my finger (that is how I help him find food if it drifts off some where) so I was leading him away, and I was wiggling my finger to keep him focused on it, and apparently he thought I had food and was telling him to jump, so he jumped up and bit me! It didn't hurt, and it was really funny. He kept doing it for like 10 minutes. Haha, silly boy!