New and very paranoid.

Would starting with 6am-6pm (lights on) from seed to 5 & 1/2 inch tall and then changing to 12am-6pm )lights on) do any damage or permanent damage?
aka - 12/12, changed to 18/6 before plant reached 6 inches = dead?

It's understood that a 12/12 light schedule should only be used when flowering and 24/0 or 18/6 should be used during vege. Was an obvious mistake made, can this be corrected?

Change was made 2 days ago.
Natural9 Reviewed by Natural9 on . Question about light schedule changes New and very paranoid. Would starting with 6am-6pm (lights on) from seed to 5 & 1/2 inch tall and then changing to 12am-6pm )lights on) do any damage or permanent damage? aka - 12/12, changed to 18/6 before plant reached 6 inches = dead? It's understood that a 12/12 light schedule should only be used when flowering and 24/0 or 18/6 should be used during vege. Was an obvious mistake made, can this be corrected? Change was made 2 days ago. Rating: 5