Help me figure out whats up?

Hello, i have two plants growing right now about 5-6 weeks old the one has pretty much started out slightly yellow on the leaves. And now the other plant i have going is starting to turn a bit as well.I thought it might be to the fox farms ocean forest as my buddy told me its "hot". Ive used this soil before with no issues so im not sure whats going on. Im going to get a ph kit tonight after work to check my ph and im building a bigger grow box this weekend. And recomendations or thoughts? Also im useing a 300 watt full spectrum led light

Start with your pH...it will most likely give you the answers you're seeking.

pH in soil? Forget that. Phosphorous deficiency .

CannaCountry said:

Start with your pH...it will most likely give you the answers you're seeking.

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Ph was at 7 so i think im fine there, i bought a ph tester for soil yesterday and both plants were 7 so im not sure i think it might be nute burn from the soil

It's definitely not nute burn. It is much like hotrodharley said; a deficiency. The question is...is the deficiency caused by a lack of elements or is there a lock out. I was suggesting to check the pH of your feed / water, not your soil, to see if anything stood out as obvious, otherwise perhaps you should consider if you're feeding properly.

CannaCountry said:

It's definitely not nute burn. It is much like hotrodharley said; a deficiency. The question is...is the deficiency caused by a lack of elements or is there a lock out. I was suggesting to check the pH of your feed / water, not your soil, to see if anything stood out as obvious, otherwise perhaps you should consider if you're feeding properly.

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i use tap water to feed its between 6 and 7 i havent givin any nutes to them just whats in the soil. When the one plant sprouted it had just a tiny bit of yeollowing and progressed to get worse they seem stable now with no major changes. Still haven't sexed out yet going on 6 weeks

Looks like mag deficiancy to me either from lock out of lack of feed. Kinda looks like light burn to, what kind of light you useing and how close is it?

hotrodharley said:

pH in soil? Forget that. Phosphorous deficiency .

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Ffof isnt really soil its a mix of peat i believe so i would ph my water down to 5.8 just my opinion.

apollo4201982 said:

Looks like mag deficiancy to me either from lock out of lack of feed. Kinda looks like light burn to, what kind of light you useing and how close is it?

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Its a full spectrum 300 watt led it was about 1 foot away, i made a bigger grow box yesterday now its prolly 2 foot away from them right now.

Ciuld it have been caused by watering to frequent?