Goldfish laid eggs - with photos, etc.

i have a pond. my goldfish(1 female, 3males) have been spawning and there are some eggs. i want to leave the eggs in there to see wot happens, will any surive? any tips to stop the adults from eating the eggs?
 
If you could provide spawning mops or large thickets of plants and have a spare tank, it'll certainly work otherwise throw in lots of floating plants.:)
 
thanks! i have put them in a jam jar for now. how long would it be before i can see the embryo?
 
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