I just found this snail in my tank that used to be my sorority tank. And now there are a bunch of baby snails in there. I haven’t seen it before and I did a huge water change when I had some neons dying off like crazy. Even though the perimeters were fine I still did the huge change because I had one of my bettas and the neons die for no apparent reason that I could find. And out of nowhere this guy showed up. He had to be a hitchhiker but not sure from where and how long had it been for him to be that big.