If you have more seeds I would strongly suggest tossing those right out. You are very early into the process and it is often easier to start over in a case like yours than to continue on with stressed plants. Remember, stressed plants are male plants. If starting over is not an option then you should seperate those sprouts as soon as possible. As the previous poster said bury them in soil up to the first set of leaves, this will encourage roots to grow from the buried stem and will also give the plant deep roots.
Also, consider sprouting in divided trays or Jiffy-Pellets, these can be transplanted right into larger pots without causing transplant shock and keeps everything easy to seperate.