Tiny Yellow Specks on Fan Leaves

Does anyone know what can cause tiny yellow specks to develop on the fan leaves. This seems to happen to me a lot right when I go into flower. I can't tell if its over or under fert. I am not on any specific feeding schedule and I'm pretty sure the pH of the soil is anywhere from 6.5 to 7. Any help would be greatly appreciated.

Looks like a micro def, but your prolly over feeding.. can you put up a pic of the whole plant maybe give some more info on ur set up

Bublonichronic said:

Looks like a micro def, but your prolly over feeding.. can you put up a pic of the whole plant maybe give some more info on ur set up

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I don't have one right now and the light is off so I can't go take one. That's the only problem i'm having though. At least half of the leaves are covered in these tiny yellow dots. The pic I attached is one of the worst looking leaves on the plant. I thought burning was supposed to show up in the leaf tips only, right? This seems to me like a deficiency but even after I add nutes the problem remains. If i'm over feeding how could it be a deficiency? I vegged with T5s and its flowering under a 400 watt HPS. It's in it's 6th week of flower now so i'm sure not much can be done at this point. Just curious for future grows. Thanks

anytime you overfeed you lock out many other nutes. So yes it would be showing a deficiency because it is being locked out from absorbing said nutrient...with that said throwing in alot more information and pictures would certainly get you an answer you need...nute schedule youve been following, ph of soil and water youve been using etc

Schwagstock said:

anytime you overfeed you lock out many other nutes. So yes it would be showing a deficiency because it is being locked out from absorbing said nutrient...with that said throwing in alot more information and pictures would certainly get you an answer you need...nute schedule youve been following, ph of soil and water youve been using etc

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Oh I see.. I'm not really following any specific nute schedule but I try and keep the feedings no higher than 1000 ppms. I'm fairly confident the ph of my soil is anywhere from 6.5 - 7. These problems always start develop RIGHT when I switch to flower. I use R/O water with a ppm of 10. I feed w. cal-mag about once every 2 weeks. I'm using a 5 gallon pot so it doesn't require frequent waterings.

I think the problem is in PH level, i know you checked it but do it again with a different one.