Day 30 Flower Deficiency?

If any one could help diagnose the leaves have spots and are turning yellow close to the light. All leaves through out the plant have at least a few spots. But the leaves directly under the light are turning yellow.

some details....

vegged 2 months
Currently on day 30 of flower
Ocean forest/happy frog oil
Using fox farm full line nutes including beastie bloom at 50%
Feed every other water which is twice a week
Water until 25% run off


Flushed 2 weeks ago

ph of solution 6.5
Ph of runoff 6.3

temp lights on: 75-78F
temp light off -65-70F

type of light: mars hydro sp3000
Distance

Why are you ph’ing so low? Shoot for 6.8-7.0

Wattzzup said:

Why are you ph’ing so low? Shoot for 6.8-7.0

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will go higher next time. You think that’s the reason though? It’s only .5 off and still in the sweet spot. The plant right next to it gets the same nutes and ph and is fine.

I use similar soil, I find fewer problems at higher ph. 6.6-6.9. Spots look like Calcium deficiency but also you could of locked your roots out from low ph.

Your plants are showing a calcium deficiency. You need to lower humidity, 90% is going to quickly give you rot.

BuddzKillington1015 said:

will go higher next time. You think that’s the reason though? It’s only .5 off and still in the sweet spot. The plant right next to it gets the same nutes and ph and is fine.

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I don’t know I don’t ph in soil.

I water until 25% run off every time 2 gallons in .5 gallons out. The ph is consistently 6.5 sometimes slight higher sometimes slightly lower. I flushed these as well so I don’t think it nute lockout. But I could be wrong....

SBBCal said:

I use similar soil, I find fewer problems at higher ph. 6.6-6.9. Spots look like Calcium deficiency but also you could of locked your roots out from low ph.

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SBBCal said:

I use similar soil, I find fewer problems at higher ph. 6.6-6.9. Spots look like Calcium deficiency but also you could of locked your roots out from low ph.

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I don't know soil, but I thought 6.5 pH was optimal?

Who knows maybe flushing gave you a def. maybe you had a lockout or some issue (I assume that’s why you flushed)

twentyeight.threefive said:

Your plants are showing a calcium deficiency. You need to lower humidity, 90% is going to quickly give you rot.

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Was going to say the same but the hydrometer is sitting on top of wet soil

twentyeight.threefive said:

Your plants are showing a calcium deficiency. You need to lower humidity, 90% is going to quickly give you rot.

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I just watered the plant

BuddzKillington1015 said:

I just watered the plant

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That meter is sitting on wet soil

Wattzzup said:

Where did you see 90% at?

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Hygrometer on soil.

twentyeight.threefive said:

I don't know soil, but I thought 6.5 pH was optimal?

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They use a buffer in the soil that drops it low. Idk what it is but it’s configured for higher ph tap water I’m guessing

BuddzKillington1015 said:

I just watered the plant

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What is normal RH? Temps are low too.

twentyeight.threefive said:

Hygrometer on soil.

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I don’t zoom in on pics for the most part. Guess I’m too lazy

With your runoff that low , try 6.7next . Then 6.8 until the runoff is closer to 6.5 and your plants are happy

twentyeight.threefive said:

What is normal RH? Temps are low too.

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The 45% i have a cloud line inline fan that is auto controlled

If you think there’s no lock out and you already flushed, then give her some extra calmag .

I’ll try bumping up the ph next watering

SBBCal said:

If you think there’s no lock out and you already flushed, then give her some extra calmag .

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Yeah I’ll give it a shot I’m using tap water so I thought that would suffice but I have some calimagic