Yellow seedlings (not over-watered)...?

[Kenneth]

Howdy,

Other than over-watering, what are some reasons that seedlings (tomato and pepper) might look a bit yellow?

Thanks for any tips,

[<yourbuster]

Pepper and tomato seedlings will turn yellow once they have used up the nutrients readily available to them. After transplanting they will become green again until they reach the same point. Add supplemental compost or fertilizer to keep the plants green.

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[Pen]

What medium are you using? Are you fertilizing them? Do you have hard water in you ares? How much sun are they getting? Are you growing a yellow-leaved tomato variety like 'Tigerette'?

[Beecrofter]

too cold too hot poor fertility not enough light exposure to residual herbicides in compost pH far from optimum too much light