Flowering and yellow fan leaves

Hi,

My girls started to pre flower 3 weeks ago and I’m noticing that the lower fan leaves are starting to yellow. I just started them on bloom 5-10-5 by age old nutrients. They’ve been sitting in FFOF soil. Should I feed them a little more N or just stick with the 5-10-5?

You can give them some more nitrogen. They’ll use a bunch during the stretch then after two or so weeks I would just use the other product.