Dude! For seedlings like that get yourself a shot glass and water with that.Be very careful dont water ON the seedling only around it about an inch or more from the sprout.This is helpful during the first week of life and will help with...
1. Hard to overwater when you are just using a shot glass.
2.stimulates rooting from the sprout as it has to "hunt" for water
3.prevents/protects the delicate stem from fungus/mold attacks.
4.makes you feel like a pimp watering with a shotglass.