I will go to the nursery tomorrow and get a soil tester to check the nitrogen. I have been watering once a day. Do you thinnk that is too much? Thank you for your feedback
It looks to me like a definite oberwatering issue. Watering every day is generally too often, especially with a young seedling.
There is a few reasons for this. Roots need to breathe. Water is essential, but too much of it too often causes an anaerobic (without oxygen) environment in your soil. The roots can't breathe, and will start to rot if you do not correct the issue. Also, if you do now allow adequate "dry out" cycles, the young roots will have no reason to venture out into the soil and seek water. You want the roots to grow and seek water, because that means your plant will grow as well!
As a general rule of thumb, always wait until the soil looks dry on top before you even consider watering. There is absolutely nothing wrong with letting your soil dry out to an extent. I would wait until the top 1/2 inch of that pot was dry before I hit it with water. For a seedling that size, watering 2 or 3 times a week should be about what you should expect. Good luck!