Answer: It's hard to make a diagnosis long distance, so I'll make a few suggestions about stocky healthy transplants including some of the common problem spots. Seedlings will do best with plenty of light (most gardeners use about 16 hours of supplemental fluorescent light with the bulbs kept just a few inches above the plants) and average to cool household temperatures. They do well with decent air circulation and should not be too crowded. They need enough space -- they should be thinned promptly and repotted into larger containers as needed. By the time they are reaching some size, they may possibly need some nutrients in addition to whatever was supplied in the potting soil so you might think about using a water soluble fertilizer such as MiracleGro at a very dilute strength (some gardeners will use a compost tea). Generally, too, tomatoes only need to be started about 6 weeks before you transplant them to the garden; the reasoning behind this is that they are sunlovers and really just do better for the most part when planted in the ground than in containers indoors under artificial conditions. Finally, you might check them very carefully both tops and bottoms of the leaves as well as the stems, for signs of insect activity.
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