Common Problem. Still Not Able To Find An Answer

I'm about 2 weeks into flowering on my indica and the lower fan leaves have started to yellow significantly... seems to be the trend as the top ones are beginning to show signs as well. using jack's classic for my fert which is a 10-30-10. should i be concerned? I'm still about 6 weeks out from harvest I figure and don't want all my fan leaves dead with another 3 or 4 weeks left before the chop. any ideas on a solution/is this something I should even worry about? any suggestions would be much appreciated

A photo will help your cause, also providing other info like your ph, temps, and lights will likely get you the best advise. Good luck

The yellow lvs will turn and fall. Don't cut them. The plant needs them. Fan lvs are expensive for the plant to produce.
I wish I could solve ur prob. Adding anything will take weeks to have an effect. Deleting anything will take weeks to take effect.
I think you'll be harvesting the plant that way, mb let it ripen a few extra wks to make up for lost food production. The finger lvs also make food just not as much. Soil grow? Do u own a ph meter?

!0-30-10 is too much nitrogen for flowering cannabis. That is why the fan leaves are yellowing prematurely. You need the first number to be lower, a 5-30-10, the fan leaves will still yellow but it wont happen until a little later in the game.

sorry should've left a bit more info here. unfourtunately don't have a camera. doing a soil cfl grow, I've got 6 26 watt bulbs for a total of 7200 lumens. plants small (personal use only) at about 16 inches. pH is at 6.7. temp is at 78 with lights and 71 when they go off. definitely not going to remove any of the fans, i'll just let them drop off as they die as to not stress the plant

Have you ever flushed your plants? It may be a nutrient / salt buildup in your growing medium. This is a common problem when using a lot of nutrients during veg, and never allowing them to be fully used or flushed out before going into flower.

You probably want to lower your PH as well. While soil is capable of growing good plants with a PH as high as 7, most experts will agree that plants do best when their PH is in the range of 5.5 to 6.5 as this is the range that the most amount of nutrients are available to the plant.

Additionally if you are using soil and watering your plants with PH 7 water, your water runoff from your plant would almost certainly be higher than 7 depending on the type of soil, just another thing to look into.

Your temp is a little high for flower for my taste, but others may disagree. I would try to get it down to 72 - 75 to help prevent heat stress.

if it is the lower fans leaves yellowing first its a nitrogen problem