anti fungus

Bart,
I am a little confused (nothing new there) - are your Angels' eggs going white within 24 hours or so? If so they probably aren't fertile in the first place.
I note that you have had some very limited success with hatching, which rules out your pair being two over-amorous females.
Fungus will not live on healthy eggs, even though it often spreads over them. If this happens don't worry unduly because the viable eggs will still hatch and if you're leaving them with the parents they will remove the wrigglers onto a different site or even a depression in the substrate.
The major cause of infertility in Angel Fish (and many other fish, including - and more especially Discus) is that the water perameters are wrong for the fish.
I was once told that if pH or hardness is too high it makes the eggs unreceptive to being fertilised and this proved very true for me with Discus, they would lay eggs almost weekly but nothing ever developed but this was in tap water! As soon as I lowered the pH and gH the spawns were progressing and hatching immediately after that change, as if by magic! Unfortunately the male decided that once they were wriggling they were 'fair game' and ate the lot every time, sadly a trait he never got over...but that's a different story.
In years past commercial breeders who would always remove the Angel eggs to hatch and raise artificially used Methylene Blue as a fungus deterrent, but it never worked especially well for me.
I have found meticulous attention to keeping the water clean and doing a small water change daily to be a far better regime to follow.
I hope you overcome the problem, your male might just be a bit on the infertile side if your water's OK, if all else fails try to obtain another male.

John