hi, i have 5 metriaclima callainos between 2 and 3 inches. i am wondering if someone could tell him how I might go about sexing them and i was also wondering on how big some of you have personally seen these fish get. thanks for your help.
I'd say you might be able to vent them now. Usually around 3 inch you can start determining the sex of the fish. Check out this article which explains it well. I have a Met. Callainos (about 1.5 yrs old) who is about 5in. I think they range anywhere from 4-6 inches