Please help

Hello everyone.. So today i'm starting on day 16 of flower with 6 lovely ladies under a 1000 watt 5x5..But recently as there buds have been forming... (the first sign was right before the switch) 3 out of 3 of them seem to have been affected a little by something. The smaller or lower cola sighs stopped forming new leaves and became slightly yellow/brown small and dry.. I have them in a scrog setup so the ones i'm talking about are getting light, however, the main or bigger colas of them are growing just fine it and they look beautiful the white pistols are shooting out and buds are forming nicley but the other ones just the tippy top of them look somewhat okay, then where the buds grow on the node are not growing and if they shot any pistils out they look a little brownish. I don't know what to think now really.. It is my first grow any help would be absoulutley amazing.. Thanks i'm going to post pics asap.

Okay so heres a pic of one of them. The main colas to the outside look great but towards the center is not so good. It's a white skunk plant

Is may be low ph?

Heres a pic of a middle branch on the same plant. It doesn't have white pistils shooting out and it looks unhealthy.

Pics coming in now

They seems unhealthy compared to the rest

Would it do something like that? I have no idea what my ph is.. I'm using general organics nutrients. Supposedly ot balances ph itself but I don't know

Heres a comparison cola on the same plant that looks nice

when ive used general organics the ph definitely needed adjustment. especially when using their calmag and bio root.

I need to get a ph meter I guess... Would ph problems cause symptoms like this?

In my experience GO nutrients do not need ph adjustment. The nutrients are organic and will change once they hit the soil/peat base mix/coco mix. Use a compost tea every two weeks and up the grow and bloom to 1 1/2 the recommended dose. If you are using coco up the cal-mag to 1 1/2 to 2 times the recommended dose.

I don't know if giving them more nutes is gonna help though.. It doesn't sound like it would since i'm following the feeding amounts. Could you explain your remedy reasons possibly?