"yes you can but you gotta rinse the dirt off and be careful with root ball as to try not to damage any,"
Use a 5 gallon bucket half full of room temp. water. Gently swish only the root ball in the water. When placing the rinsed seedling into the hydro set-up
try to make the root system run downhill from the stem. Place your dripper right at the bottom of the stem but be sure the water/nute solution
does not fall directly onto the stem. That can cause problems down the line. Check your pump daily to make sure the filtering screen remains
unobstructed (my first mistake) and that you change the resovoir weekly (my second grow mistake).
Good luck, BigSteve.