Getting Rid Of Ramshorn

[Bloo]

I seem to have these little *&^^%$£ in my tank - think they snuck a ride on a plant.

Well that's what I think they are and they look like - they are teensy tiny though and have been for about a month now.

How do I get rid of them ? I only have cories, endlers & killifish in the tank - and no space for any more fish.

 

[JoLtNbolt]

I need to get rid of some pesky Physa acuta that I picked up from Petco! They multiply like crazy... and the little baby snails are so small I could never pick them all out of my plants