i check my PH all the time and is usually between 6.4 amd 6.7 i have read online that it could be a calcium problem which i am not sure , thats what my plant looks like when u look at pictures with calcium problems again it seems to only affect the fan leafs mainly. I know it is not the water getting on the leafs and it magnifiying the light. i have started to use nutes and 1/4 strength 15-30-15 if it is a calcium problem what is a good thing to use? also i have notice a few little tiny flies around it here and there they are black not white which i think was probably the dirt but i killed most of them with my hands or vacum lol any help would be appreciated...........