Sexing Angels

[fishykisses]

Does anyone who lives near burnaby have any experience in sexing angels?
I have 4 angels about 8-12 months old. This afternoon i noticed that there were a ton of eggs (a good number are very white)and an angel guarding ...i assume it's the mother but she won't let any other angel near, which would lead me to think that there is no father...is this assumption wrong?
Anyway, i thought there was at least one pair possibly 2 but i'm not sure.
Can someone help me sex these little buggers so i can buy other angels accordingly?
I could also post clear up close pics if that would work.
Thanks all
Connie