What kind of deficiency is this ?!

Grow Cycle
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What are these dots on my leaves. Every plant has at least one or two leaves ( or more) with these yellowish dots over them. They are are in happy frog fox farm soil. 6.5 ph water, I have not given them any nutes yet and they are almost a month old. I do put more PERLITE in the soil than I usually do l. What should I do ? Are my girls shocked ? I am about to transplant the rest of them as well.

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Looks like calcium and magnesium. What’s your water source? Are you supplying any calmag?

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My water source is tap water. I use ph down to get it to 6.5ph. I do not use cal mag, I didn’t have this problem last grow ?? However I know things can change easily. Should I be using cal mag every time I give them water ??

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do you know the ppm of your tap water going into the plant or coming out?

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I use 5ml per gallon on water only days when I start seeing it. I don’t usually see it until they’re flowering.

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My ppm is 16-17 from my tap

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Oh thats low. I add 5ml of cal per gallon to mine and my RO with 3 stages takes down to around 10ppm. I am sure one of the more experienced growers will chime in but it looks like you may need to add cal to your waterings

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8

Definitely should be adding calmag. Those are near RO water ppms.

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9

Solid advice from BD.

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How often, and how much cal-mag should I add? And any brands that you like the best ? Or is it all the same ??

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11

Once a week, 5ml per gallon. I use botanicare cal mag but pretty sure it’s all the same.

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