Well 50/50 between gem and coins. So even odds are good. Doesn't matter to me since only way I can collect and nurture is if I reduce my Ipod screen otherwise so jerky it annoys me and stops as reloads the animals . And since need 8 days total to breed the Manx and 4 for Python, they can keep the spider on the shelf.
I've seen 2 farms with everything and they were TL ones Farmerted seems to have one