No, the cotyledons are too round to be tomato. Looks vaguely familiar. Lettuce? Weed?

No, sorry. Don't know what they are but those aren't like any tomato cotyledons I have ever seen. Tomato cotyledons are normally very long and quite narrow while those appear to be much more rounded and plump.

Dave

Thanks they must've came from the soil I am using.

Thanks for the help they must've came from the topsoil I used also I have another tomato seedling except its leaves aren't long. Is that a tomato seed.

And is there seeds in the soils. I use top soil because I'm afraid of mold,larvae, and gnats from Miracle Gro.
-TomAndJerryGardener

This post was edited by TomAndJerryGardener on Sun, Mar 24, 13 at 2:11

TomAndJerryGardener, if you worry about mold, larvae, and gnats you can always microwave the soil to kill them before planting.

And is there seeds in the soils. I use top soil because I'm afraid of mold,larvae, and gnats from Miracle Gro.

Sorry but that makes no sense. Not only is using soil/dirt never recommended for growing seedlings but there is 50x the chance of getting mold, larvae, gnats, fungus, strange seeds, etc. etc. from top soil as there is getting them from ANY potting mix.

Dave

You should always use a soilless seed starting medium when planting tomato seeds. NOT dirt or regular potting mix. As Dave says, you are far more likely to have problems with your seedlings with anything other than a soilless seed starting medium.

And yes, dirt does have seeds in it. They are called weeds.

Betsy

Here is a link that might be useful: How do I start tomatoes from seed?