Yellow tips just showing up

Based on all I’ve read, I assume this has to do with low ph. Ph in is upper 7s. Ph run off mid 5s. I’ve only watered twice to run o ff. Last time was 5 days ago. Plan to water again today or tomorrow.
Seeing some yellow tips on new growth

Gold Leaf Auto
30 days from sprout
Soil in pots
PH of runoff 5.8
FF ocean
HGL 135
Steady 76-78 degrees
Humidity at 50% until past 4 days at 64%
Ac infinity 6”
No ac or humidifier
Co2 no

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Plant looks fine; nothing to worry about here.


Appreciate the feedback. I assumed as much, but being my first grow I wanted to be ahead of any potential issues.