Lifesabeach

Now I'm confused. Yes, there is room to be more confused than I already am! One site claims a red anal fin for males, other site - female to determine sex of Silver Dollars.
Haven't searched to see if this has been discussed before, but I dare say someone would have the correct answer! Compare:
http://www.fishlore.com/Profiles-SilverDollar.htm
with
http://www.bayfish.com.au/category21_1.htm

aquarist48

Hello Life. I've even watched mine go through a spawning cycle and I still can't tell the difference. They get together as close as they can, stand there and just quiver like you wouldn't believe. (although you may have seen it for yourself).

Lifesabeach

I've seen them quiver - I thought there was something wrong with them. However one use to have an epileptic type of fit too often for my liking in the old tank. No sign of it yet in the new tank.