Conditioning is feeding large quantities of live/frozen foods with some high quality pellets here and there (feed 2-3x a day).. can take anywhere from 3 days to 2+ weeks to get the female eggy.. keep them in their own separate tanks, place a piece of paper or cardboard between the two tanks (called carding), allow them to see each other no longer than 10 minutes a day. Don't use the breeding tank to condition them.. they need their own separate smaller tanks (ones that can be placed side by side).
Being virgin fish, it's not uncommon for mishaps to happen - the eggs may not of been fertilized properly due to not wrapping correctly. Also some males don't always know exactly what to do sometimes when it comes to parenting.
I am a nervous wreck with new daddies.. my last spawn I removed the dad just after hatching, and I have a new dad in with a batch of eggs that were laid yesterday afternoon.. nervous that he may eat them or neglect them. But all we can do is trust them at first and see how they do.
I would go ahead and remove him and don't disturb the nest just yet.. give it another day or two and see if you get any surprises. Not all the eggs need the father there to care for them.. so you may have some up in the nest you can't see too well that may hatch.
Make sure the temp is about 82-86F. After you remove the male, use an airline tubing and siphon out a lot of the water, leaving only enough to cover the heater (suctioned to the bottom of the tank) and wait to see if you get any fry over the next couple of days.
After conditioning reintroduce the male to the spawn tank, then the female - keep her separated in the chimney until she is ready to breed - flirt swimming, stripes (if she is a darker color), wanting to follow him, etc.. he has built a nest, dancing for her, trying to lead her to the nest. Then release them, cover the front of the tank (in my experience that makes it a bit easier to get them to spawn) and let them be. Leave an inch or two at the top of the tank uncovered to peek in without disturbing them.. check regularly to make sure they aren't killing one another.
Good luck! Your fish did the deed.. even if it wasn't successful, they know the general idea of what to do and it's practice so hopefully next time it will come a bit easier for them.