Winston and Nina's tanks are right next to each other. When I first turn on his light in the morning, he sees Nina and FREAKS OUT. Fins spread out, gill covers at a 90 degree angle, swimming in circles. Nina sits there and watches for about a minute, and then goes about her business (which usually includes hanging out inside of her shell, or flaring at her reflection in the diamond in her tank.)
They're very entertaining fish to watch.
Winston~ Damian~ Twitch ~ Evans