Tug kept MANY amphilophus species for along time now.. So I usually just go with what he says when it comes to sexing Amphilophus...
Vent is the best way in my opinion.. But the next best thing when it comes to blurry pics is Tug
And that is not 100%
But it works for me as you can see with Amphilophus 
Vent is the best way in my opinion.. But the next best thing when it comes to blurry pics is Tug


) She looks just like mine did at that size. So I'm taking female. Aggression has nothing to do with sex, I've learned that the hard way a few times. If you have a higher percentage of females in your group then there will be aggression for the top spot, just like dominant and sub-dominant males.





