Deficiency? Temp? Ph? Whats the issue here?

A little background first:

I received this plant 5 days ago from a friend. The strain is True OG. They are potted in FF Ocean Forest soil in a gallon pot. I am using Jack's Classic Orchid Special for nutrients.

My friend warned me when I got it that it had spider mites, there were visible webs at the top of the plant and visible mites on the underside of the leaves. He had it under a 1000 watt MH.

I immediately built a little 2x2x4 quarantine tent with 184 watts of 2700k cfls, and black/white poly. I threw it i there with a Hot Shot No Pest Strip for a couple days, yes I am aware of the dangers, but this plant is never seeing flower, it will be broken down into clones and used as a mother temporarily. The NPS worked great and now I am mite free.

Unfortunately the plant has been steadily declining in health since I received it. Leaves curling and turning brown with some green leaves just shriviling up and dieing.
I checked the ph of the runoff with 6.0 water and it was low, like 5.0. So I flushed with slightly elevated Ph (6.5) and 1/4 nutrients yesterday but am seeing no signs of recovery.

The temp in the tent has fluctuated between 65-85 and the humidity has been between 50-80%. This variation was due to it raining outside and leaving the windows open in the room the tent is in to ventilated the No Pest Strip.

Any help would be greatly appreciated.

Pics to be posted ASAP!

Anyone got any help?

I forgot to mention I have been using bottled water and adding 1/2 the recommended amount of Cal-Mag per gallon. I've only watered her once since I got her, and it was at the same time that I did the flush.

I've got the plant moved out of the quarantine room and into the main tent, which is a 2x4x6 with a 4 bulb 4 foot T5, and 4 23 watt 2700k CFL's. As of right now, I'm assuming the plant is just recovering from some sort of Ph related nute lockout and the spider mites. It seems to be showing symptoms of over watering as well, which I guess isn't surprising with the flushing I did.

This is my first grow, so I'm hoping this plant will recover well enough for me to get some clones off of her and start from there.

Thanks in advance.

Multiple deficienies noted.

Mg-def identified by the specks of necrotic lesions on leaves.

N-def identified by the light-green colored lower foliage.

Possible P-def identified by the red-hued stems.

These multiple deficiencies are more than likely caused by a pH imbalance, as you assumed.


Get it corrected soon or else you will have something to throw in a compost pile

I forgot to mention I have been using bottled water and adding 1/2 the recommended amount of Cal-Mag per gallon.

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This looks like a calzium defiency. You shouldn't have added cal/mg extra. Remember it's always better to underfertilize then to overfertilize. You should flush it with distilled water and stop fertilizing completly. After that you should use plain tab water. If your lucky she recovers after a few weeks. Normally soil has enough nutrients for veg unless the soil isn't months old. Only fertilize if the plant lacks nitrogen.

Magnesium (Mg): this is a component of the chlorophyll molecule, it works with enzymes in the plant. Magnesium helps support healthy veins, and leaf production.

Abundance: Excessive levels will create a toxic amount of salts, that will inturn kill your leaves, and lock out calcium.

darkliight, thanks for the tips. I guess I will just wait it out and see what happens... I've got the pH figured out I hope, I'm too fearful to water her again to test. Guess I will test again next time she needs watering.

hooooooop said:

This looks like a calzium defiency. You shouldn't have added cal/mg extra. Remember it's always better to underfertilize then to overfertilize. You should flush it with distilled water and stop fertilizing completly. After that you should use plain tab water. If your lucky she recovers after a few weeks. Normally soil has enough nutrients for veg unless the soil isn't months old. Only fertilize if the plant lacks nitrogen.

Magnesium (Mg): this is a component of the chlorophyll molecule, it works with enzymes in the plant. Magnesium helps support healthy veins, and leaf production.

Abundance: Excessive levels will create a toxic amount of salts, that will inturn kill your leaves, and lock out calcium.

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I'm confused. At first you say there is a calcium deficiency, then you say I shouldn't have used the cal/mg.

I'm confused. At first you say there is a calcium deficiency, then you say I shouldn't have used the cal/mg.

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There's nothing to be confused about. the mg you added locked out the calzium intake of your plant. This means even though you added cal... the mg abundance has a stronger impact. Do you understand now?

hooooooop said:

There's nothing to be confused about. the mg you added locked out the calzium intake of your plant. This means even though you added cal... the mg abundance has a stronger impact. Do you understand now?

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Perfectly. Thank you!

you're welcome