We were saying it wouldn't grow very well in what you had going on and would be eaten if the snails were going to be an issue. Low budget is fine. You can get amazing results shopping clearance racks.
Since that is hot soil (new soil that has not been watered) give it a good watering around the seedling to about 3". Maybe a quart of water. Do it again in a few hours. Ultimately, washing a cup full of soil is good practice when seeding fresh store bought soil.
Seedlings this young do not need nutrients at all. Especially since you are growing in soil. Read up on Black Gold Soil. It will tell you how long you can go without needing to add nutrients. Usually, that's 3-6 months. When you go to flowering, that's when you start with flowering nutes.