Who can help diagnose my issue?

Situation basics:

Plants are 3.5 weeks old (in veg), bubble gum strain.

The room tends to stay in the low 80s and into the high 70s at night. Humidity is typically around 50%

Under a 400W MH 24/0 in soil which is local hydro shops "pro mix" plus about 33% (by volume) perlite.

Plants are given a half gallon of water twice a week. 1 time is the botanicare directions found here -> with ph'd and the other is ph'd water with 10ml cal-mag per gallon.

According to the soil PH meter (the 2 probe basic one) my PH is in the mid 6's for the soil.

Im thinking nute deficency, but I am having issues finding a pic that matches (i am very poor at diagnosing nute deficiencies)

There are pictures of 2 plants attached.

Thank you in advance for any sugestions/help

More picsAttachment 277242Attachment 277243Attachment 277244Attachment 277245

I think you fried them, 3.5 weeks old probably only need small amounts of fertilizer. Too much pearlite will cause your soil to not retain as much water either.

I'd flush them very well that stick to just water. With that much pearlite you may need to water a little more often.

Thanks. Here is the link for the nute schedule I follow. (sorry it didnt post)

Does this seam reasonable?

Can you also better define the term "fried" please?

Thank you.

botanicare/dutch master/fox farm. how to use em

You shouldn't be giving them any nutrients the first few weeks so I believe that to be your problem. Give them just water until they start to recover.

Dude, to hell with all that jarrgon just try to keep it simple. You'll spend more on two bottles of that crap then I'll spend on all nutrients for 18 plants for a full grow.

Quote:

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Originally Posted by ddxsinxcosxdx

Thanks. Here is the link for the nute schedule I follow. (sorry it didnt post)

Does this seam reasonable?

Can you also better define the term "fried" please?

Thank you.

botanicare/dutch master/fox farm. how to use em

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Exactly which botanicare nutes do you have??? I can help you with a feeding recipe to make sure your macro and micro nutes are covered and available, at the right amounts, per period of growth....

Like mentioned before, flush really good.... Once the plants look healthy again, you can resume nutes at a low strength.... After flushing, don't water again until at least 75% of the moisture has transpired....

Don't let nute mix recipes confuse you, once you know how and what effects when, your plants will thank you.... And anything more than 5ml per gallon of cal-mag is too much....

CGI::::::

I use:

PBPG
PBPB (Soil)
Liquid Karma
and cal-mag

Nutrition and diagnosis really is a week point for me, and I welcome all advise on how to get better. I have Ed Rosenthals book, which I read and use for reference, but I cant seem to get to the point I understand plant nutrition well enough to avoid using someone elses set pattern.

Plants are due to be watered tomorrow. I will flush them and report back on how theyre doing in a few days.

I've read Ed's book a dozen times or so and it's great reference material.

When plants are smaller they can't take an OD of nutrients like older and more mature plants. Although I start with just MG I go on the very conservitive side until they are a few feet tall then I go full strength. Superthrive is supposed to be beneficial to new plants I'd suggest you use some on your next watering as it tends to help plants recover from shock.