What Type Is This Snail?

[orangefish]

When I first set up my tank, I found a hitchhiker that came in on my plants. Since then, I have around 20-30 snails I would guess that are all young and about 5mm in size. I have 1 large one that is around 1cm big though. However, I have never really taken the time to think what type of snail it actually is- it's probably just a 'common' freshwater snail or something. The pictures not very clear- but it has a dark brown body and dark brown shell too. Any ideas on the specie greatly appreciated!

 

[BackToTheFishes]

I think its a Ramshorn,common on plants