I saw something really interesting yesterday. Two of my silver dollars were swimming together and sort of shimmering and putting their anal and breeding bits together. One of them developed a black tinge to the edge of his fins and also 2 black marks on his body. I think they were laying eggs- im sure i saw an egg come out at least twice. It was difficult to tell as the other fish in the tank seemed to know more than me because they were following them around and going for the anal area, i assume to eat the egg. I am guessing SD's are egg scatterers. The best part was another smaller SD's kept sneaking in and 'having a go himself'. Great fun to watch

I have got three silver dollars and have also noticed the black marking on the side. I believe that you sex silver dollars by the shape of their anal fins. You could well have witnessed them laying eggs, they do let them drop onto plants and they hatch by themselves, they don't need any help from the parents

When I purchased mine I did a lot of reading up on them and their behaviors. I believe, if I remember correctly, that the males have more red on their anal than the females.

i thought i was doing a gd thing wen i bought 7 silver dollars only to wake up the next morning and find them gone i know my oscar ate them wen lights wen out

im waiting to get some more but i will put them in another tank till they are a decent size
regards ash

They are at it again tonight and this time i saw something drop that the other fish didnt see so im pretty sure its eggs. Dont rate its chances of survival even if it hatches, will get gobbled up in no time. O well free food i suppose

I've never gotten mine to spawn. Water is you water chemistry? Temp? Photoperiod? If you don't mind.