Herijuana grow HP aeroponics

Overwatered once the second water. Had my timer on accidentally when they were still in rockwool fully submerged. they’ve recovered finally with one seedling stunted, one leaf is gimp and the other leaf is fine. Set of true leaves on them and roots barely made it all the way down sticking out of bottom of rock wool. Changed timer on my diy high pressure aeroponics set up to 20 sec on and 1 hr. Off.