Synirr
"No one is a failure unless you try"
I just set up a new 5 gallon aquarium two days ago, and I added six snails. Three ramshorn, three trumpet. I already have nine, yes NINE, separate little jelly packets of snail eggs on the sides of the tank. Trumpets give live birth, so I'm told, so they must all be from those three rams horns. WHAT THE HECK?! Are they really THAT prolific, or am I just unlucky?? Nine egg packets in 2 days seems like an awful lot. If they're laying eggs at a similar rate in my 10 gallon and I'm just not seeing them... well, I dread the thought. That tank probably has about 15-20 ramshorns as it is! And those are only the adults.... 
