So one of my plants has a dry brown buds at the veeery tip of each bud site. It was only about a 1/16 of an, inch on each bud that was effected. I clipped and removed the brown sites and am waiting to see if it grows back. Does anyone know if this is normal? 5gal pots in coco and perlite. 600watt hps, 16" from top colas. 7 weeks into flower.. Feeding the girls aact. Strain is white russian. Room temp 79 & 20% humidty or less. Any help would be great. This one has been seperated from the others and waiting to be chopped.