I have no idea what 'in style' means. . .
. . . unless it means SPARKLES!!!!
If *I* had a fish named Sparkles OR Sparky, I'd just end up calling it Sparks. Cuz' that's what I do. Princess ShimmerBlue is Shimz or Shimzy (because I. . . just. . . can't REMEMBER that we're pretending
he's a girl all of the time so (s)he is kind of gender neutral as a fish right now, lol, Sparky even more!
We could just agree to call the aforementioned electric catfish Sparks and be done with it. It's gender-neutral, so we can all keep our opinions, neh?
(But I dunno. . . naming a creature that looks like ol' Sparks does. . . something as girly and CUTE as Sparkles. . . appeals to me ;)