Hello, week 5 and she has taken off, is the coloration on new growth normal or do i have a nute deficiency starting?
PH 6.2
PPM 850
RES TEMP 71
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That normal @UncleFester my friend happy growing
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Thanks, i was starting to panic,
What’s your lighting intensity Grow Bro 
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Your ph and ppm are fine, those are a bit lighter than normal but sometimes they will do that and the green will fill in and darken. As @OGIncognito mentioned, make sure you give them enough light.
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I’ve got two (2) VIVOSUN VS1000 LED grow light’s running at 100%, i assume these are decent lighting.
Tent is VIVOSUN 36x36x72.
Timer is 18/6
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How high are lights?
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About 18" from the top of the canopy, light meter shows 45k LUX at plant top,
Do you have the ppfd, or DLI?
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New leaves on most plants will look yellow for a day or two and then go green when the chlorophyll develops. Perfectly normal and nothing to worry about.
If the older leaves go yellow then it’s a nutritional deficiency (usually nitrogen but sometimes iron).
Old leaves will also go yellow when plants are flowering. This is caused by the plant sucking nutrients out of the old leaves to put into the flowers. If your plant is flowering and lots of old leaves start going yellow, you need to increase the amount or frequency of fertilizer.
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Just have to be sure, Iron deficiency will do it too, but they won’t turn….
@Highgrade welcome to the family you have come to the right place my friend happy growing buy them right here