Smaller class of cichlids?

  • We are currently upgrading MFK. thanks! -neo
The male will probably have more pointed fins like many of the Central American cichlids. If they are too young, maybe just buy a couple (if they are cheap) and grow them out. The older they get, the more sexual differences you will be able to distinguish.
 
In salvinis, females will have a dark blotch in the middle of a dorsal fin. Males lack this feature. This is a tell tale sign of genders with these species. On the other hand mistakes do happen and as pointed out sexing is obviously easier with larger fish
 
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