Yeah, the pointed dorsal and anal fins isn't really a set thing to go by...as some cichlids actually both sex's will have pointed. Big thing is color difference, or key trait, like the dot in the dorsal, white stripe in the dorsal (most Crenicichla), red belly....and so on. Another way to sex them is to vent. Kinda hard to explain, but males will have a pointy thingyer, and females will be more blunt, rounded = ovipositor.