ID for two different critters...

[RodneyC3]

I have had a small explosion of these tiny little white snails in my 55 gallon tank. They are so small it is really hard to get a picture of them... I've seen things like Stomatella and Pyramid snails but not sure if this is them. There is at least 100 of them. There is also a another tiny guy that kinda looks like an paramecium.

Here is them all over the glass

Here's the best close-up I could get

And here is the other unknown guy

 

[cloak]

Collonista snails would be my first guess. They're just harmless grazers that reproduce quite well in or tanks. I'm not sure about the second picture. Check this out.

http://www.lionfishlair.com/hitchhiker/hitchhiker.shtml

 

[RodneyC3]

Awesome Site. I think the second one may by a Chiton. I have quite a few of them in my 55 gal as well. Anyone had any issues with either of these two? That link says that both are a "Score!" but I was just concerned with the shear numbers and how quickly the little snails popped up. In my past experiences, that is usually not a good sign.