Hi guys ... I'm growing 8 fast flowering candy kush by royal queen seeds in autopots using the buddha meta and pk mix, sensizym and dutch pro A and B at half strength .. they are 5 week into flower of a 7 week flower but never expected them to be that quick ... pass few days 5 of my plants have been turning yellow quite quickly and some of my leaves have actually crisped up as seen in the pictures .. I know that coming to the end of flower they do turn yellow but 3 of my other plants are all green and dont have as much amber in them compared to the other 5 .. am I just panicking or is there any need for concern .. any input would be much appreciated guys .. thanks