I hate my RBTA

If you get them before they have sexed( smaller juveniles) ,one will dominate and become a female,as I understand it. I've not heard of exceptions but suppose they may be out there. If they are both sexually mature , they may both be females and can't change from female to male ;only from male(xy) to female(xx). The male can shed the y chromosome and double up the x;the female has no way of acquiring a y.
In the wild a pair will usually tolerate a 3rd fish ( a male) on the fringe of their territory. If one of the pair dies that fringe male fish pairs of as a male with the female if she is the survivor ,or; if the male form the pair is the survivor , it will become a female and the fringe male will pair with it.
 
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I have 5 mated pairs:3 amphiprion ocellaris pairs , one amphiprion alardi pair, one amphiprion frenatus pair and one young unsexed pair of amphiprion percula.

Each pair is in a separate tank.
The frenatus(tomato lownfish) are hosted by an rbta( entamacea qaudricolr).
One pair of ocellaris tend their eggs on the aqauirum glass near an elephant ear mushroom .
One pair of ocellaris nest in a cave placing their fry on the ceiling of live rock.
One pair live in pvc pipe and lay their eggs on the roof or the ceramic tile lean-to.
The alardis nest in some rubble and paly colonies.
All 5 mated pairs started as young juveniles with one emerging female and the other male.
None seem to need an anemone.
Many tank raised fish have not learned about anemones but may eventually catch on if oe is present..
 
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