Yeah, they'll be watching. 0.o
It's great your snails are fine. I'm sorry Velvet has internal parasites. (Based on the meds you listed) Pond Snails are pretty small, right? And yes, I'm getting a sorority. I'm cycling my 20 gallon right now, so far it took 2 days for 3ppm to go to 1ppm.

I'm planning on getting a mystery snail or two, but I don't want any babies.