Too much light???

is the WW a light sensitive plant? This is my second one and the same thing happened to both plants the parts closest to the light turn yellow and like half the leave shrinks causing pry of the leave to curl and a majority of the leaves are light color I harvested the plant and turned out fine but prob could of been a lot better this is a clone of the first one I harvested. It's about 4-5 weeks into flowering I believe (I'd have to look at my calendar) I tried and organic compost soil this time around last time I did all my own nuets both times grown next to a blue cheese which I had no issues with either time and did the same things to both! So any help or tips would be appreciated light is a 600 watt hps on 75% power a lil further than 20in which I feel is quiet far but if I put it at like 16in it gets worse the rooms a lil hot on average 78-81 but best I can do with out a/c

That's from heat not light, looks like your leafs are curling cause of too much heat. Try to vent better or run some air conditioning. Also looks like you are using too much fertilizer.

Yeah 20" for 600w dimmed 75% is far. It could be a few things.
What is your usual RH?
Your water ph
Also what is in your nutrient mix?

Hold the phone....take a picture with your lights off....I can show you the same leaf (imo) and mine is a mutation called variegation

Last pic,in the middle I bet half the color is just coming off one side with the bent almost 90 degree tip ?

I wanna say your temps are fine I don't think its light nor heat issue.

I think @wiethe20 is correct.

Post a pic so you can show them the mutation

I know it isn't a light issue I use t5s
My heat is always at 76 F with lights on...I am currently checking my trichomes so I am digging threw pictures now, but here is a 6 leaf pattern

Basically it is all about chlorophyll

I have more if you don't get the gist...maybe @pseudobotanist can answer this... I have read that it does effect yield and quality? Is that true?

wiethe20 said:

I have more if you don't get the gist...maybe @pseudobotanist can answer this... I have read that it does effect yield and quality? Is that true?

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I honestly don't think it will. Or if it does, it affects a minute amount.

That mutation is just cool looking. Some leaves even turn purple.

The reason I don't believe it affects much is because it's usually just a few leaves that do that or sometimes you can have a whole stem.

pseudobotanist said:

I honestly don't think it will. Or if it does, it affects a minute amount.

That mutation is just cool looking. Some leaves even turn purple.

The reason I don't believe it affects much is because it's usually just a few leaves that do that or sometimes you can have a whole stem.

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That's reassuring, I kinda want the OP to answer, I've really only gotten to talk to 1 person about it....I do actually have 1 set of stem from the ground up like this, and I'm 20 days from flip so I'm really hoping for the white buds on that! I've seen a few pics it looks awsome!....but other then that 1 I have 1 more tops from fimming and lsting and it's just on maybe 6-8 different leaves spread out

pseudobotanist said:

I honestly don't think it will. Or if it does, it affects a minute amount.

That mutation is just cool looking. Some leaves even turn purple.

The reason I don't believe it affects much is because it's usually just a few leaves that do that or sometimes you can have a whole stem.

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I do have a leaf I thought was turning blue, but could be purple it's really small it's kind of next to a bud site...I'll take some pictures tomorrow (east coast)

Well your temps could be controlled a little bit better.

Roosie-b said:

i the rooms a lil hot on average 78-81 but best I can do with out a/c

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Just about anything you can do to cut down on the heat would help loads. Tossing a small fan to blow air between the light and canopy can even drop the temps on your actually canopy a lot. Your room's temp means squat if your leaves and buds themselves are cooking.
So check the actual temps at your canopy. Prop a thermometer up there and leave it for a while or do whatever it is you need to do.
It doesn't really look light bleached to me but can't really see the color due to HPS. You'll know that for sure because it'll yellow out fast and take on a bone>cream color. It'll kinda develop a feel I could only describe as either construction paper or maybe thick sketch paper.
Crack a few beans, stick a MH bulb in a 400w rig and stick it a little over a foot above them after a they're a week old. Wait for 2-3 days. It'll give you a prime example of bleaching lol.

I have 3 fans it's a 3X4 room roughly the rh hovers around 40-50 idk if the issue is a huge deal I would like to correct it but the mother of this plant turned out great coulda been better in assuming this is my 3rd batch of plants

Deformed tops as described- if not heat it's a sulfur deficiency.

Also checked the ph of soil n was just under 7 and the blue cheese next to it has a lot better color (don't believe you can see it in pic) or and doesn't have twisted leaves so just kinda had me concerned since the last one did the same thing

I use well water which comes out at 7 the only time I adjust it is if I'm using nuets which I have only used several times in this crop n was the organic fox farms and both plants are in a compost mix bottom half of pot is compost rest is perlite n no name soil the last batch had controlled nuets n had same issue come up about a week into flowering the buds look healthy to me (I'm no expert) but the last two batches sure smoked great

Are you kidding? Has Noone seen my post or @pseudobotanist ? It's not light, it's not heat it's a mutation called variegation!

It's not sulfur def either...