Need help diagnosing yellowing plant

My ladys are a few weeks into flower and all have been looking very healthy. But one of them has had burnt/yellowing leave tips sense early veg. Other than that it’s still very heathy, just wondering what it is from. i’m pretty certain it’s not nute burn bc i have only feed these girls a few times and a much smaller plant is thriving off the same dose. If anyone could let me know of possible deficiencies or other issues it would be greatly appreciated. I know this plant will make it to harvest just fine, but i want to know what to avoid next grow. thanks

2x4 tent, 5-7 gallon pots i don’t remember, ffof and strawberry fields mixed with some organic coast of marine harbor blend. its “BlueBerry” from Dutch Passion Seeds. other two that have 0 issues are different strains so could be genetics. Tbh i don’t take care for them as much as i should and RH will be around 30% sometimes and temps can swing from low 80s during lights on and go down to below 70 at night.

Not sure why you combine 3 base mediums together. That alone would create unknown issues.
‘One is highly nute dense (Ocean Forest) , another is compost loaded , and another is “pre fertilized “.

So IMO , try a water only style grow , maybe some of that over fertilizer / ratio of excess will some how get exhausted.

Ironically , the OF could have technically did everything by itself.
As would each of those mediums separately .

Budzbuddha said:

Not sure why you combine 3 base mediums together. That alone would create unknown issues.
‘One is highly nute dense (Ocean Forest) , another is compost loaded , and another is “pre fertilized “.

So IMO , try a water only style grow , maybe some of that over fertilizer / ratio of excess will some how get exhausted.

Ironically , the OF could have technically did everything by itself.
As would each of those mediums separately .

Click to expand...

i mixed the ffof with the marine blend bc i had a extra bag so it was mostly ff and i didn’t add the strawberry till i transplanted into larger pots for flower.