I'm catching up on a bunch of photos I took and never had time to post, last few weeks.
While the smaller tank had no betta fish, I paid more attention to the snails. Noticed a change in their behavior- they were crawling around more active, and frequently have their feelers. out
Either the betta Oliver was aggressive to them and I didn't realize it, or they like the increased flow since I switched the air pump. You can see them in this photo- the nerite's feelers extended in front of it-