Heloo! I am new to the AFN.I have 4 autos in a 80cmx80cm Homebox tent under a 400 HPS in cooltube. One of the plant didn.t start flowering untill I changed the light schedule tto 12/12. At first was 18/6. This Happened about 16 days ago. If i change back the schedule to 18/6 will it affect the plants negatively and stop the flowering period?