Angelfish eggs

[Ginger]

I have 5 Angelfish I bought about a year ago, in hopes of at least two pairing off. I hadn't noticed any of them acting like a pair, but well, surprise! This afternoon I walked in to find my aquarium heater speckled with eggs. Can someone tell me if they will hatch or will they cook? I am inclined to unplug it but would the water get too cold.

 

[William]

IS there any way you can move the aquarium heater without disturbing the eggs? Remember that if you take a warm heater out of water it will crack!! so wait for it to cool before lifting it out of the water if that is what you need to do to move it!!!