And the males also have pointed dorsal fins and longer pelvic fins...but sometimes the females with have charcoal fins (only when excited)...but the absolute way to tell is by venting them (looking at their anus and vent anatomy)...
Venting is the only way to correctly sex them. Males and females both have black on their fins. Black stripes is no way to sex a electric yellow. Ones with no black is just a example of one with bad coloration.
You people try to say that "venting" is the only way to sex any fish. Everytime a person asks how to sex their fish, the one thing people try to say "venting" it makes me laugh so much. I think I'll believe the scientist and professionals who list online than a person who says "venting" about every fish there is. I mean seriously, whats next Convicts can only be sexed by venting?