No problem at the beginning but later on Ps. Flavus dominant male will take over 40-50% of your tank, and you will have a little problem. Then he will probably kill another flavus male/subdominant male and then you have more problems, later on he will pick on cyno and then you will have a whole lot of headache… This is the scenario I encountered.
It is recommended to have at least 100cm long tank so that they can swim in the manner they love to do it and in order to divide territories in best possible way.
My suggestion is now a little bit contradictory from written above…add at least 3 more Flavus and 3 more cyno (if possible all females) and then you will probably avoid having tank dominant male, you will avoid other subdominant male death and cyno will fight for they right from a better position…More fish=less aggression=better balance.
Believe it or not that can and will compensate for those 20cm that you are lack of... :wink:
Sound strange and crazy but I'll put my bet on it!!
Another question...since the tank above was 1 of my first ones (= 0 experience), I have many different cichlid inside. If I keep 2 Labido. Caeruleus adult (8-9 cm), 1 male of P.Aurora and a pair of Mela. Auratus? I am sort of attached to them since I bought them when they were really small...
The other fish I will return them to the LFS.