Originally Posted by aroid86
my shark egg has like white fur growing on it and dont know why
It sounds like the egg is dead and a fungus is taking over it. HOWEVER, here's how you can check the egg: Get a high powered or bright flashlight, remove the egg and shine the light through the middle of it from behind. If the embryo is still alive, you should be able to see the little shark moving inside along with the yolk and the liquid inside should be clear. If it looks like soup inside, unfortunately, the egg is dead which is why it if fungusing over.
Hope this helps