Rookie needs help...please...help...lots of info provided

First time grower...learned a lot from this forum (thank you all) and have been lurking for quite a while...first time post.

I am growing in a 2x2 tent with a Hydrofarm FLC0125D Fluorescent Grow Light. I started Dutch Passion Blueberry from 10 seeds. I am using the Fox Farm nutes...soil too (FF Ocean Forest). Everything was going VERY well and I am getting ready to move some over to flower and clone a couple mommas.



I started to notice some yellowish spots about a week ago. Not spider mite looking spots, but just in case I used a 30x jewelers loop and took a peak. I didn't see anything under the leaf. I researched on here how to look for them. So the yellow spots are only on 2 or 3 of the young ladies. On this one, it is eating away at the beautiful leaf.



On another lady I notices some "shriveling" of the leaf...



Here is my grow journal:



I know it is a little warm, but I have not been seeing poor results from that. I also saw on this forum that many people did not have trouble at 80F. I am not watering often, but they were all doing so well that I did not want to over water. I am not quite sure what the problem is and any help would be GREATLY appreciated.

Some additional info that may help:
- I use balanced tap water
- I am running lights 18/6
- I have the tallest lady about 12 inches from the light
- I run a fan in the tent to toughen the plants
- I am using a 4 inch inline fan and carbon filter

THANK YOU ALL!!!!!!!

Bump...can anyone point me in the right direction? Thanks!

hey,,just as a help,,whats your pH,,I dont think its that but maybe a check wont hurt. You providied loads of info,,but from the 2nd snap, with the leaf in the fore ground and the one in the back ground looks like insect damage.

that 3 snap,,the shirveling looks either insect damage(which i dont think) or you feed may be nearly too strong/much. I find that when the leafs features(such as the edges,viens etc) get more prodominate or bullstered ,, the ppm is abit to high in the feed /water. and getting close to just over the line as it were.
so I dnt think that the 3 snap is somthing to bad,,keep an eye on that,, looking good though. so those are my ideas...
good luck and take it easy...

also any residue on leafs?? and any small spots on underside? Id make a guess at thripes?? for the size of the damage and how the leaf looks sucked dry..

bunnyface said:

hey,,just as a help,,whats your pH,,I dont think its that but maybe a check wont hurt. You providied loads of info,,but from the 2nd snap, with the leaf in the fore ground and the one in the back ground looks like insect damage.

that 3 snap,,the shirveling looks either insect damage(which i dont think) or you feed may be nearly too strong/much. I find that when the leafs features(such as the edges,viens etc) get more prodominate or bullstered ,, the ppm is abit to high in the feed /water. and getting close to just over the line as it were.
so I dnt think that the 3 snap is somthing to bad,,keep an eye on that,, looking good though. so those are my ideas...
good luck and take it easy...

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Thank you so much for your insight. I looked at the undersides with 30x and I do not see anything. The pH is 6 to 6.5. I will research thripes...thank you for the suggestion.

its okay,,well its quite easy to see thrips as theyd rather run than fly away, and are easy to spot so maybe not....umm i still maybe think insects,,but your pH is bang on.nds like
I think it would have to be something quite large and maybe only kicking about at night due to the 80F temp. That temps fine, i run alittle over that with my 600watter ,its actually better to stop insects if you can get the room temp down to 60F if possible,. also to check for mites mitsing is effective to see webs and blast the bastards off but you need to have a large pop of mites to get to that stage. sorry if this is all jumbled,,its just the order im getting from my head....
if itsz aphids you could see them too, but they do damage silimar to pic2,,and leave a honeydew behind.aphids suck life giving sap from foilage causing leaves to wilt and yellow. that kinda sounds like pic2. I doubt its a leaf miner,
thripes,,more common in greenhouses than indoor,,this fast moving bastards are hard to see,,but not hard to spot. from 1 - 1.5mm,long and can be different colours including white to grey/dark colours. check for thripes by shacking a branch ,,they jump and run rather than fly away. females deposit eggs into a hole foilage(soft plant tissue) which is vertually invisable to the naked eye.
Thripes scrape tissue from leaves and buds and suck up the juices of the plant for food. they also leave small specks of poo on plants!! bastards,,anyhow,,hope that helps..
So keep an eye on that plant and see if it gets worse.

Good homemade sprays work to control pests,,pyerthrum is the best all rounder but isnt organic at all. neem works well against mites,,only with other pest fighting controls. like cleanieness. nicotine srpays,,hell the list goes on.
good luck and take it easy..

johnnygrows said:

Thank you so much for your insight. I looked at the undersides with 30x and I do not see anything. The pH is 6 to 6.5. I will research thripes...thank you for the suggestion.

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It's thrips, not thripes, and that's not what caused this damage. I'd agree with others that it's probably a cultural thing relating to nutrient strenth, RH, or pH.

Wolverine97 said:

It's thrips, not thripes, and that's not what caused this damage. I'd agree with others that it's probably a cultural thing relating to nutrient strenth, RH, or pH.

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If its environmental, which do you think is more likely? I am switching to reverse osmosis water today and will continue to balance to pH. The thing is it is only 2 out of the 10 plants. Anyhow, I am going to start watering and feeding more as well and see if the problem gets better or worse. Any other suggestions are mucho appreciated. Thank you Logan for your time!!

johnnygrows said:

If its environmental, which do you think is more likely? I am switching to reverse osmosis water today and will continue to balance to pH. The thing is it is only 2 out of the 10 plants. Anyhow, I am going to start watering and feeding more as well and see if the problem gets better or worse. Any other suggestions are mucho appreciated. Thank you Logan for your time!!

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Honestly, it doesn't look too bad, I wouldn't sweat it too much unless it gets worse.

Plant looks great bro, the yellowing is a nitrogen deficiency. continue on and up the grow big a little and you should be fine

And if possible, always start with distilled water that has 0 ppm in it! reverse osmosis is good too!

smokebros said:

And if possible, always start with distilled water that has 0 ppm in it! reverse osmosis is good too!

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Thanks for taking a look! I will add more nutes as you suggest and hopefully this goes away. I just bought the reverse osmosis system and will have to installed tonight. Thank you!!!