So the one in the tube hovering over the eggs is supposed be the male?

How common is that for male CA?? With free swimming fry they may both be just as involved in tending, but 99.99% of the time the female is the one that tends the eggs!
Your supposed female looks much more male to me, then your supposed male.
So unless I see the pictures of the breeding tubes, or further developement shows otherwise, I think you've got the sex mixed up!
By the way, especially the last time my male Dovii fertilised eggs, he had a HUGE breeding tube. It does look different then a female tube as it is not quite as thick or blunt, but it is long and curves downward. No exxageration, it was over 3/4" long on a skinny 13" fish. By far the largest tube I have ever seen on a male cichlid.