my cousin and i have recently purchased a cuckoo syno each and he has lent me his for a while so i can attempt at breeding them .they are in my main tank with my breeders which are not ideal hosts but worth a shot i guess ,they are in with yellows ,afra ,rustys ,azureas and red empress.i am not sure on their sex yet so i thought i would put up a post.there is a smaller one which chases the larger one around so im hoping they are a different sex. :slfg: