I am new to the hydro growing methods, but would like to get my feet wet. I have read alot and did alot of research on hydrophonic growing. There is just one thing I don't understand and that is on the seedling or clone. How does the roots grow down to the resoivor when their just starting. Do they automatically know where the water is or does gravity just make them go downward to the resoivor. Or are you suppose to keep watering them slightly until the roots grow in between your rock mediums.
For example this peat pellet is at the top of the rock medium and I'm sure the roots aren't very long to reach the resoivor. http://www.overgrow.com/image.php?to...=soilvshydro05
Just copy and paste.