Everything was fine until...

I'm hoping for some advice on my first grow. I have problems with a White Widow Auto and a Pure Kush.
The WW is at 98 days. Buds are big on the tips but small down the branches. Clear trichomes and still lots of white pistils. You can see from the first picture some leaf issues coming lately. I water between 6-7 ph and cheap soil tester says soil is 7.5. I was adding a weak EJ Cal/Mag every few waterings. (Tap water)
Should I stop all feeding and flush?

My Kush was doing well until recently. It is almost 2 months into flower and getting more leaf issues by the day. Might be insufficient Cal/Mag or maybe lockout?
I was feeding it organically with Happy Frog, and recently once with a weak Tiger Bloom.
Any advice would be appreciated.

It's a balancing act doin small pots and bigger plants. Those babies are no doubt rootbound.

But IMO...the yellow and the funky BIG fan leaves...old leaves...isn't a huge concern/is normal. Take off anything that is full on yellow or brown. As you go on...you will lose a lot more leaves...fan leaves...early leaves that have done their job getting the plant where it is now. As long as it is older leaves...I wouldn't freak.

Can't really advise you on nutes as I don't use FF nutes. The Happy Frog is slow release from what i remember...so that won't help you. I'm sure someone who is familiar with those nutrients will chime in...but i always go SLOW....use 1/2 what they say/etc...and that';s likely what I'd do here. It's definitely a waiting game.

best of luck finish them up

Thanks Sticky. Oddly enough, they are not root bound. I was going to transplant them thinking they were, but when I popped them out of their pots, they were fine.
That was about a month ago, and they were in flower so I assumed the root growth had slowed. The pots are 10.5x10x9.
I never thought they'd get that big LOL.

Sounds normal, it's eating the fan leaves. Might be early to flush, but that wouldn't stop me from switching to just water. Maybe add some sugars if you do the living soil thing.

They look like normal flowering plants to me