Help. Clones and 4th week flower

Clones in 2x2 under hlg65 4weeks from cutting.

Same age clones but transplanted to 3gal 4days ago 2x2 with a spiderfarmer sf1000.


4th week flower(day 26)(86 days from seed)
2x4x6 sf2000. Water is ph too 6.3-6.8 on all.
I seem to get this lighten green and yellowing for the 4th time. (In New soil)
First time was bad like when you flush your plants they basically looked dieing till the end.
2nd time it kinda happened mid veg went away then 4th week flower worse then the picture above.
3rd I tried using advanced nutrients grow micro bloom. Over did it and got some rock hard mini nugs with almost no need to trim was all fried lol.
Now the pictures above. I switched to foxfarm happy .
I don't know what to try.
The clones are from the ones flowering cut just before switch from veg.
Do they seem healthy?
I have gave the flower ones 2 feedings with the advanced nutrients. Just before switch .5mlto 4liters and day 22 flower 1ml to4 liters. They are in 5gal from 3gal 60-70days since and looked ok or so I thought until around 23/24 day flower.

This was jan17 they were flipped to flower jan28.

Any input or suggestions or some someone know of some like week by week kinda guide or something but know I need some help getting some smokeable production thank you

Have you checked for light leaks and has their growth slowed lately, nodes getting tighter?

Shouldn't be any leaks its a new tent but i will double check tonight. Yes growth has seems to slow. Nodes tighten as the branches go up i can take a picture tonight aswell