What the heck is that mix? It's pretty rough looking, lol.

Looks like a weed to me... definitely not a tomato or pepper.

From the link the OP gave: "Soil-less Natural Beginnings is based on coir, the short fiber from coconuts. Because coir is porous,it allows air to circulate, reducing the incidence of root diseases. Compared to peat moss, coir retains more moisture and nutrients and is easier to keep wet. Coir lasts up to four times as long as peat and can be reused several times for successive so wings. In addition to coir, Natural Beginnings contains worm castings and meal worm guano as natural nutrient sources; the castings also enhance aeration and water retention. Contains enough to fill more than 4 standard seed-starting trays (13" x 32")."

The seedling in question is definitely not a tomato or pepper. It either came from the worm castings or the meal worm guano. Pull it.

And at $25 for only a 16 quart bag, I would personally choose something much, much less pricey (not to mention more finely textured and uniform) to use next time. But what to use is your choice and if you like the mix then go ahead and use it.

Rodney

Anyone considering coir based mediums vs peat based for seed starting might want to browse the comparison photos here:

http://cpl.usu.edu/files/publications/factsheet/pub__9468201.pdf

It looks like grass to me. Got no idea what kind of grass though.

I enjoy finding volunteers in my soil, however I agree with the others this does not look like a tomato or pepper, it is most likely grass. I got a similar volunteer like this last year but that is because I mulch with dried straw/hay.

I don't understand why i should care if its "rough looking" and "finely textured and uniform". This is and extreme close-up, its dried out, and is possible "rough" b/c of the way i filled the trays in (loosely). That coir info is good stuff though, ill be sure to use peat for my homemade mix.