They were different sizes when I got them ,About a inch and a inch and a half. And yes they always had the horn.
They were being fed frozen brine shrimp. 1mm nls and a bit of veggie flake. Try the shimp , i,m sure they will eat that.
ok so here are pics unable to get really close but got one of each fish and you can see the black "horn i am talking about nice and clear also if herald checks back in here you think these guys may be gold heads? the larger of the two has lightened up alot but you can see the yellow in the face and there is also a faint yellow tint in the fins.