White stuff on angelfish

[Jwspong]

Had this angelfish for about 6 months now and she's been fine. Laid eggs for the first time yesterday. Today I noticed a white substance on her sides. Any idea what it is? Looks kinda like mould...

 

[Jwspong]

Another pic

 

[Zipzap]

I don't know what it is, but I have seen that before on dying Angelfish and dead ones. I would add some anti-fungal medicine to your water.