My Plants Have Spindly Stems?

Sounds like a light problem, maybe too much. If you have had similar plants before and they didn't do this, well, maybe that's your problem.

Here in the north plants get tall and spindly from a lack of sunshine in the winter months in a windowsill.

My gut feeling is it is still a lighting issue. Do you leave it on 24/7?

Most plants need a period of darkness as well. Sounds like you need to do further research on plant lights and lighting and all the do's and don'ts. You might find good books on this subject at your local library, or at Borders, or Barnes and Noble Bookstores. Try on-line as well at some of the agricultural colleges websites. Theres A LOT of good information out there on plants and growing, seek and you will find.

To answer this question would take more info. All plant have different requirements. It could be a pH problem. Could be a nutrient problem. Could be a lighting problem. Its hard to tell. In your earlier question you said they were dying off after a week or two, that usually means nutrients or pH. Try adding a little lime to the soil. You can get it at most garden centers or farm supply stores. Make sure you are using a fertilizer but it has to be a very weak solution. You're seedlings are very delicate and can't handle much. If these things don't work then try changing your lighting. You should raise the light to about six to eight inches above the tops of the plants.

Are you sure the plants aren't suppose to have spindly stems. Some of them do.