Hydrogen Peroxide for snails in orchid pots?

[MissOrchidGirl]

I am confronted with a rather annoying situation. In one of my Cymbidium pots I have discovered a snail chewing away at a new growth. It's the small type one. After researching the problem a bit I decided to place some stale beer and some lettuce on the pot during night time and the next morning I found 2 more on the lettuce. Since I'm not a fan of any toxic substances with my orchids unless I really have to, I tried spraying the little buggers with hydrogen peroxide 3% and surely enough they died. Now I'm thinking if it's a good idea to soak the entire orchid pot for a minute or so into peroxide, this way I'm sure to kill off all of them, as I'm sure there are others. I do use peroxide quite a lot but I only spray the unpotted plants and so far no issues. Do you think there is any danger in soaking the entire pot? Attached is a picture of the nasty bugger. Any advice is greatly appreciated and thanks!