Hi, I've just bought a pair of A.nijsseni and the female does not have the large blotch on the operculum clearly visible in the ones I've had previously, it has a more regular apisto stripe. The black mark on the middle of the body is only a smallish size spot rather than a large blotch. The fish is a beautiful yellow colour though with no blue so I'm pretty certain it is a female. My question is has anyone seen a female nijsseni before with simialr markings. There was another female in the tank with markings the same. Thanks, Ken. ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!