Is this a worm/how to get rid of it?

[yellowsnail]

Hello. I keep a variety of snail species, one of them being white and brown lipped garden snails. I live in the UK so they are wild here. Anyway, this is Abe. He has lived inside for 2 years now. I boil the substrate and leaves before putting them in the tank. I boil anything that can be sterilised that way that goes in there, so I'm guessing he got this from food, if It is a worm.

See image here: imgur.com/a/mm0cJsb

I have fed him pumpkin seeds which he ate a little of, but I saw some reports online that doesn't work, so I really need a backup plan

Thank you

[Cashell]

Hard to be 100% sure just from the looks. The only way to be absolutely certain is if you are crazy/brave enough to have a veterinary technician that specializes in exotics have either an internal or fecal examination. Many people would probably say that this idea is overkill, but it's an option if you REALLY need to be 100% certain and have a certain means of eradication. There could be other ways, so if other people see this, they may be able to chime in. You could also look into other plants with deworming properties.