Ronnie,
Are these tropical hibiscus? If so, then according to my Hibiscus Handbook, you can feed them with a balanced soluble fertilizer at half strength once they have one or two true leaves and a good root system. They need strong light from the time they first sprout and they can be moved to a 4" pot at the same time you start fertilizing. What kind of seeds are you growing? I just planted some of mine which came from a cross I did. They have not come up yet? What method did you use to sprout them? Thanks and good luck!
Lynne

i started some hibiscus seeds from a friends plant. i soaked them first, planted, and they are sprouting. I am so excited, but what do i do now to ensure they will stay healthy? any advice would be helpful and appreciated.