Help breeding goldfish?

I Love Tetras And Oscar

my goldfish just wont breed, and they are pairs, i have them in the fish tank for weeks and havent chase each other and breed, should i put more then 2 in there? and is this fake plant good enough for it? and do i need a sponge filter too? best food for breeding? and its spring right now and havent breed for 3 weeks, and the owner i bought from said that these 2 are pair and they are mature, but they just wont breed!, please help out! and theres the picture and video

Is this a male?
h4.jpg picture by sai559 - Photobucket

h4.jpg picture by sai559 - Photobucket

h4.jpg picture by sai559 - Photobucket

And heres the fake plant that i tied it to the boat
h4.jpg picture by sai559 - Photobucket



And the video
h4.jpg picture by sai559 - Photobucket

dfish23

I have kept goldfish in an outside pond and they breed in early spring as soon as the water starts to warm up some. They would do it every year around the same time but i never tried to save any of the eggs and since the pond was pretty bare the were always eaten. So I'm no expert in breeding them lol. But I'm guessing to get them to do this in an aquarium setting you would have to mimic those conditions. hope this might help some!