I've had my Akindynos clowns for several years with a blue Haddoni. I recently changed nems to a blue gigantea, and found my first mass of eggs today on the overflow!! I'm happy their loving it. I thought they hated each other
My understanding is that you will need to remove the eggs and hatch them in a separate environment if you want them to survive.
Maybe someone else can chime in with some real knowledge on this..