MedUs_0oanswered grow question 5 years ago yes I think the problem is propio the light, perhaps it is too strong and the plant is still small to bear that power, try and raise it by about ten centimeters and wait a few days that grows more and becomes stronger and then puts the light back on at the distance of the first, for the other plant if they have the other days it may be that one genetics supports more than the other, I tell you this because the same thing happened to me and only after separating the lamp did she return to normal form. I hope to be proved helpful. good job