Help on plant health

My little ones are eight days old and are 4-6 inches tall. The leaves look nice and broad and are growing, but my stems seem too skinny. I have plenty light, two fans blowing directly on them and a time released fertilizer in the soil. Just some really good bag seed. I water every other day. Are skinny stems normal for this stage or can I do or add anything to make them stronger? Thanks.

Small stems are very normal for that age. the fans will help strengthen the plants as they grow.

Keep on doing what your doing.. should strengthen up.

Everyone on here talks about mixing their fertilizer with their water. I chose to use the time released. Can I expect my plants to grow to their potential with this kind or should I shop for a liquid fertilizer? I am planning on switching when they begin to flower. Any recommendations for which kind to use?

no one knows of a good fertilizer for the flowering stages? I believe if I pick the right one it will increase my yield considerably. Is this true or does it have more to do with the lighting?

Time released nutrient soil is a big no-no. To put it simply, it's shit. If I were you, i'd wait a little and then transplant them into better soil and then bury the stems up to the first set of rounded leaves