GHSC pure kush and blueberry

Looks like you have foxtail on those buds this occur when light is too intense or and temperatures are too high they start to grow more Buzz over the bonds that are called foxtail it does not harm the plant in any way just that it can be a little tricky to get ready for Harvest ignore the new growth and focus in the older growth try to look at the trichomes and harvest according to those telling sign the new growth will always show no maturity but the older growth will show you how truly ready your plant is to harvest and yes a calcium magnesium deficiency will cause or source of problems because they require that specific nutrient to fight Heat and extreme light. Hope this information helps you out have a happy grow