Leaves lighter green spots

Let top 1" dry and water throroughly. however long between depends on age of plant and pot size. use weight of pot to help gain familiarity of wet/dry. okay, could be Mg on its own, but i'd get pH upto 6.5-6.8, if you can. That may fix it. it's a photoperiod, so plenty of time to figure it out safely. sorry i didn't see the initial comment on my first post. if the bottom leaf is unrelated disregard the previous answer, except for pH. I don't see necrotic spots, which doesn't track with Mg or Ca, so it looks more like trace element issue, which would be kinda rare i'd think in soil. Z, Mn, Fe all can have interveinal starting at ends of leaves. Your new growth doesn't match up with these, though. Some toxicities can cause a mish-mash of these things like p/k toxicities. if you have a breakdown of ppm of what you fed, you can better deduce what the problem is even in soil.

@nobody01 I don’t think it’s calcium since I don’t see anywhere any brown spots. Could be early signs of zinc deficiency maybe? I guess just keep an eye on it and see how it turns out. At least, I know it’s not my humidifier

Look like the beginning stages of phosphorus deficiency, leaves may start turning yellow in places if the phosphorus deficiency is left untreated, or if the deficiency is combined with other nutrients deficiencies and/or pH problems. However, yellow leaves is typically not associated with the beginning of a phosphorus deficiency. leaves get bronze, purple or brown spots and splotches hope that helps and good luck to you and your grow ✌️🏾

ah ok

@nobody01 the lower leaves were like that from the beginning. They were in a hot room with hot soil. Also, I think I gave them nutrients too early. I dk if that info helps? Also been watering every other day maybe I need to dial back and let it dry up a bit more like 3 days? I’ll check ca and z though

Only been giving water 6.0 ph temps 68-77f week 3 Using fox farms ocean soil