Honestly I'm not sure. I found a site that has an MP3 of how it's pronounced but I can't listen because my speakers are unhooked atm
Not knowing how to pronounce it right I'd guess like Loy (roy)... I'm probably completely off base here though lol. Just thought it was a neat name. Plus I generally don't ever talk to my fish and say their names. It's usually "Hi guys! Time for food." Or other stuff like that ;) I just saw your guy and thought festival. he's kinda grizzled like he has points of light all over him.