Yellow Tips on lower leaves!!!

So its been a while and I recently got back into it but Im having this yellowing on my lower leaves. Never had this issue and I'm wondering if its time to start fertilizing. I'm a month in and havent fed them yet. Do you think this is my issue. My ph is right and other that the yellowing they look completely healthy. I just don't want this to get outta hand. Any reccomendations PLEASE!!!!

Are you overwatering as the soil seems very moist. That may be an issue.

The more I've been reading I think that could definiately be the problem. I just watered it yesterday and woke up this morning and thats how it looked so it definiately happened since my last watering Heres a pic of the entire plant take a look do you see any other signs?