I'm trying out seed snail this year, the bak Choi are doing well, and tomatoes are starting to germinate. The chilli and green peppers failed, but I think it might be due to me using seeds from the fruit I bought from the supermarket to eat.
Did you fold the bottom of the plastic in and roll it? I read it's best not to do it as it causes water log and restricts root growth. But obviously that didn't impact yours as yours has come along nicely
RE: Starting Young Plants in a 7cm Pot / 省スペースで育苗