Can anyone help with what's up with my leaves

I know the pic suck I took with the Led on so I black and whited it but I thought a pest maybe eating them but I haven't seen anything in several checks a day. Is it possible to sprout like this and if so is it a defficency of some kind. The grow had been great up till this point. Just started a few days ago. Any help would be appreciated cause there at 4 weeks and I don't want preflowers to be affected

Need more info on what youve been doing lately to her.
Did you water too early? Do you check ph?
Soil lights feed schedules...etc etc.

Ph is 6.6ish distilled water.. soil is mother earth groundswell. I've been watering when soil feels dry half finger deep,usually 2-3days. Nutes is mg organic 11 8 8 at half strength,but only a few feedings with nutes. Lighting is morsen(eBay) led on 20/4 schedule roughly 20 inches from the plant. I had at 16 but noticed a little bleaching on a few lower leaves. Humidity had been on the high side at 75% but I just put a bigger fan in the tent so it's low 60,s now.

Does pot feel light, when you think its dry?
Do you check ph of water before giving to plant? Some Distilled is pretty low ph...too acidic.

Yea I been checking the weight also. The pH is pretty low on the distilled. I've had to add upper to get it decent. I check the water going in but haven't watered to run off yet. I don't think the plants need that yet. I usually water about 16oz when I do water

Well for future reference of people searching I've came to the conclusion from a ton of searching it's from topping. Or likely I may have fimmed