Is there a drainage hole in that pot. It looks like your seedlings are floating in a lake.
Believe EVERYTHING Elaine told you. She is spot on. There are a couple things I do differently (but there are a lot of 'right' ways. I might wait a bit on the fertilizer - there is usually a little bit in the seed starting mix.
I spray the surface of my seed pots with a fungicide after I have planted the seeds and I always water from the bottom to avoid disturbing the developing root systems.
Daisy