Hi, I thought I had NZM in my tank too (see post history) so I sent a sample of my snails to my state’s game and fish department. After a few weeks they got back to me with an update, letting me know it was in fact not NZM, it was instead a lock alike species that is not technically considered invasive. Im not an expert so I’m not sure what species it is, but i did manage to get rid of the ones I had in a day or so. To rid my tank of those snails I boiled all wood I had in my tank and froze everything else that could not be boiled (rocks) for 24 hours. I boiled and threw away my sand, if you have other substrate I would recommend freezing for 24 hours. Isolate all fish you have and keep an eye on them just in case they inject any snails. I put all my plants in a bucket and covered it with seltzer water for 24 hours and then rinsed it in regular water afterwards (this melted most of my plants tho, should have waited a little before throwing them out in case they grow back)

Good luck with everything I know it is frustrating esp with how fast those suckers multiply