Seedlings have fuzz on them

I tried starting seedlings indoors for the first time. I started some tomatoes, peppers, and eggplant. I noticed some fuzz growing on top of the soil a few days ago, so I took the lids off and wiped it off the best I could. Today I noticed on one of my tomato seedlings that there is fuzz growing on the just barely emerging seedling. Should I start anew on that seedling? Will the others end up with this fuzz as well? Can I use the same soil mix or should it be thrown out? Thanks for the help.

I'd say they are too damp, but only you know this. Let the soil dry out some and take the lids off to give they some air.
You could mix a couple ounces peroxide in a spray bottle with water and spray the plants to get rid of the mold. I had this early on and the peroxide worked well.
If you choose to start over, pop the soil in a zippy bag and put in the microwave for a couple min. to kill the mold.
Got any pics?
Jo

I'm new at this but this is my experience this year so far. I had some fuzz on one of my seedlings in the soil. I just wiped it off and it was fine. There should be some fuzz on the stem of the tomatoes. They are fine little hairs that will grow into roots if the stem is buried in the ground. I felt like I had overwatered a couple of times, and when I did, I used some paper towels to soak up excess water, and I also applied a little extra growing medium to the top to help soak up more excess water. With the tomatoes, it doesn't matter because the stems will grow more roots where you put new growing mix. I can't say about the other plants though. Maybe someone else can chime in.

About hydrogen peroxide. At one point some of my plants were turning light green and I discovered I had some fungal gnats. I used hydrogen peroxide mixed with water and it completely took care of the problem. They perked right up. The hydrogen peroxide will kill many things that might get in the soil and affect the plants, and it dissipates fairly quickly and oxygenates the soil and the roots. Apparently some people use it regularly for that reason, even on healthy plants. It might also kill some beneficial organisms in the soil though, so you would want to replenish them somehow with some compost tea or something. At least that's my understanding. Perhaps someone with more experience here can correct me if I'm wrong. That's just what I learned when researching it.

Hope this helps.