hi my bristlenose has laid eggs she laid them in the roof of my bogwood, i noticed the other day that there were a couple on the floor and then i saw little babies on top of the eggs and most of them were on the floor of the tank moving around. Today when i looked i could only see a couple of orange babies with their eggs and the other eggs have gone white and as if it was the shell of the egg is this meant to happen as i cant see any babies without egg sacks around and im worried if they have died. please help as its my first time doing this and not sure what is meant to happen