I had a few Pond snails and ramshorns (I think) that came in on my plant order, and there were A LOT of them in my 10 gallon within a couple weeks. I think, though, they reproduced so fast because a lot of the plants were dying off those first few weeks, and perhaps the snails were just eating a lot. Now, there are almost none and I've added 3 assassin snails to the tank as well to make sure it doesn't get overrun.
A few snails doesn't hurt, especially when they're that small. In fact, they are beneficial when it comes to cleaning.
If you find egg clusters you can easily remove them. I found tons on my anubias leaves and just scraped them off.
Last edited by Viva; 01-07-2013 at 02:44 PM.