sex

i have a red devil around 11" long and dont know if its a male or female, how do i know? what do i need to look for to differentiate between the two?

Looking for more of the scientific observation activity instead of something more salacious. Wondering if this is a male or female. You can see the size based on the heater. (Click on the picture to get the full size in case the forum software throws the aspect ratio all off.)

I have 3 Red Ceibal. The largest one is 2 inch, and the other two are 1.5 inch. Lately, I notice some behavior change that may suggest that the big one is male, and the two small ones are females, but I am not certain. There has been no fighting, just some gill flaring between the big and the...

I just bought two new giraffe cichlids they are 3-3.5 inches long I was wondering how to sex them or are they still to young to sex Sent from my Z750C using MonsterAquariaNetwork App

The fish in the photo is 2 inch. Is it sexable or needs more growth to tell.

I just got this red devil and I need help. I can't tell it's a male or female for sure. Although I'm thinking female because it's bump is small