Help My Plants Are Going Yellow

Can anyone help me, I'm not sure why my plants are turning this color. They were recently transplanted from solo cups to 5g. I'm using advanced nutrients.
What type of soil are you in? How often do you feed/water? Is it happening to you're other plants or just this one? My gut tells me that she's hungry and to up the feed strength. But I need more information to be sure. Also, are you using PH perfect nutes?
 
What type of soil are you in? How often do you feed/water? Is it happening to you're other plants or just this one? My gut tells me that she's hungry and to up the feed strength. But I need more information to be sure. Also, are you using PH perfect nutes?
I'm using full advanced nutrients. I'm growing in HP+ pro mix. The temp is around 72 degrees. I feeding schedule is feed, off, water, off, feed per week. I'm Ph the water to 6.5 on my watering days. How do I rectify a nitrogen deficiency?
 
I'm using full advanced nutrients. I'm growing in HP+ pro mix. The temp is around 72 degrees. I feeding schedule is feed, off, water, off, feed per week. I'm Ph the water to 6.5 on my watering days. How do I rectify a nitrogen deficiency?
I haven’t used Pro-mix so hopefully someone who has will post. You may find this helpful:

https://www.thcfarmer.com/community/threads/watering-promix-questions.22183/

I suspect you may need to adjust your water/feeding schedule. Probably add another feeding in there somewhere. I would also recommend raising temps to around 77*f if you can. They just like it better there. Good luck.
 
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I haven’t used Pro-mix so hopefully someone how has will post. You may find this helpful:

https://www.thcfarmer.com/community/threads/watering-promix-questions.22183/

I suspect you may need to adjust your water/feeding schedule. Probably add another feeding in there somewhere. I would also recommend raising temps to around 77*f if you can. They just like it better there. Good luck.
Thank you for the info. What do you suggest the water temp should be prior to feeding. I've been told I need it to be at room temp?
 
Thank you for the info. What do you suggest the water temp should be prior to feeding. I've been told I need it to be at room temp?
68-70*f (room temp). Warmer water has less desolved oxygen and encourages anaerobic conditions in your medium. Which may lead to some unwanted bacteria growing in there. Colder water temps will shock the roots and stunt growth.
 
Next grow try going organic. Since I switched to going strictly organic and only feeding with beneficial microbe innoculations (compost tea) it has been seriously easier to deal with, plust my plants have never been healthier. lookup 'microbeman' and KIS organics. good stuff. cheers and good luck!
 
Hi guys,

I'm about to flip the switch to 12/12 on my grow. I've had the girls in total darkness for the past 48 hours. They really need to be pruned and lollipopped and I wanted to know if it would stress my plants by doing this right when they come out of total darkness and into 12/12
 
it is to speed up the onset of flowering. the reason this is that the plant makes a hormone during the night that during the day gets destroyed(it's a light sensitive molecule). the hormone triggers flowering. So when you give them this darkness it gets to make enough hormone to all at once to start flowering instead of having to wait for the build up from just going 12/12 without the darkness.
 
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