u/Acceptable-Class-255

My $20.00 puddles a week old. Pretty sure these are Brown/White lipped snails (munching on filter media from an established indoor tank) I thought it was a turtle from a distance, still cool lil guys tho. Waters dirty from testing a brook/creek/bog filter + adding some transplants from yard. Still close to freezing overnight where I am so hopefully more will move in when it warms up.

Sorry for the awful quality, its on far side of pond requiring zoom.

I pulled out of pond. They were growing both in and out of the water. They look like hornwort but grow stiff/straight up. Any ideas? In Niagara Region, Canada.