Hi!! So I'm new to aquarium keeping. I've had my 10 gal tank for a month and a half and I have 2 mystery snails and a very happy betta 3 days ago I got a moss ball that I didn't clean super well and the next day I noticed white worms floating around. My boyfriend fed the snails and left the food they didn't eat in the tank for the day (while I was at work). I cleaned it up that night but next day there was a huge population explosion of the worms (I believe they're nematodes, super small and wiggly). There were so many the next morning that it seemed like they were bothering my betta. I haven't been feeding bc I was hoping he'd eat them. Hes normally very social and hyper and instead has been hiding constantly and it looks like when he swims past the worms and they touch him it's bothering him too. I just vacuumed the gravel and did a water change and now it looks like there are even more worms!! My betta was just super healthy looking and acting like his normal self before I noticed the worms and I just now noticed stress stripes on him : ( I just want him to be ok and I want these stupid worms out!! Please give me advice and tell me if I'm doing anything wrong?