Advice on bladder snail infestation

I bought a plant from Petco and my tank became infested with bladder snails!! They ate my mystery snail’s operculum!! It’s all deteriorated and they were crawling all over it. I took her out and scraped them off gently with a Q-Tip. I have a betta in there as well and he is now bloated! Initially I was okay with having them and didn’t want to consider it an infestation, I made sure not to over feed my fish. The numbers went down. Now they are climbing again. This time my betta has some serious bloat as if he has been overeating.. I think he has been eating the baby bladder snails?? I am stopping feeding him hoping that will resolve. But I need to add something to the tank that will eat them and will be okay with my betta. I have had a yo-yo loach in the past. Any tips or ideas?