HELP!! My plant is about to die, what do I do?!!

Alright so I have two, 3-week-old plants. One of them is doing fine, but the other's leaves are very yellow, and the stem and leaves are VERY weak and droopy. The roots got damaged when I transferred them last week, but I think my problem is a deficiency in fertilizer. What's a good fertilizer that could save my plant??

The pictures pretty much convey what they look like, only a lot worse now. Also there are two brown spots on the tips of each leaf.

How often do you water? What is the light source?

I water every few days, or until the soil feels dry. I've been growing in the window of a very sunny room. The other plant is flourishing, so I don't think it's a problem with the light....

I've been reading up on fertilizers... would Blood Meal do the trick? ... =/

Can you tell me what your PH is at time of watering and what your PH is in your plants runoff water?

I don't have a PH meter...

emmi420 said:

I've been reading up on fertilizers... would Blood Meal do the trick? ... =/

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I prefer FoxFarms family of soils. Check out HTG Supply online; they have reasonable prices and a good support staff that is always willing to help.
If your (hopeful) girls are in MG, I would transplant them quick. MG can be a real pain in the arse later in the grow as it is time released and will make it difficult to fight lock out or over nute.

Well I haven't used any fertilizer yet because I didn't wanna do it too early. But I'll go and get some of that FoxFarms stuff. Could I pick it up at my local nursery?

That plants looks to be stretching. Get some cfls! There not getting enough light.

Fox farm or advanced nutrients.

Or feed it some superthrive

emmi420 said:

I don't have a PH meter...

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Ah...GET ONE! Go to pet smart, or pet co, or some place that sells aquatic goods and get a PH test kit. Shouldn't cost more than 5 bucks. For soil grown plants, you will hear to keep PH between 6.0 and 7.0. Kind of a broad range really. I keep mine as close to 6.0 as possible (maybe fluctuating up .2 here and there).Now, as to how to control your PH, I don;'t know what your at yet. To bring PH down, I use white vinegar and have not had a problem yet. I'm not too trusting of the PH Down that can be purchased in the Pet *'s or aquarium shops. Basically, your trying to introduce acidity in your water if the PH is too high. If you have low PH, I am not sure what to do about raising that, hopefully a veteran will come across this thread. You DEFINITELY need to keep a close eye on PH though. PH balances outside 6-7.0PH in soild grows will introduce nutrient lock-outs. Also, when watering, make sure you have a healthy/decent supply of runoff as you have natural contaminants in your soil occurring throughout the grow that need to be flushed on their own. Finally, WHERE is your water coming from? Do you have city water? That has chem's in it. Well water going through a water softener? You are probably introducing sodium into your soil.

Would superthrive be too powerful for it?

Also I have been using tap water, but I always let it sit out for a couple of days first.

Hm. Cant answer that let someone chime in on that. I havnt needed to use it

So... specifically, which fertilizer should I look for? And how much should I use? The plant is VERY weak, and I don't want to overbear it, but it is about to die...

emmi420 said:

Would superthrive be too powerful for it?

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Your plants are young, they shouldn't really need anything for the next couple weeks depending on what they are planted in right. now. After the first four weeks is when nutrients start to become depleted in the soil and additives are needed to support long term growth (some plants will be more aggressive, they just get treated differently than others is all; special feedings).

emmi420 said:

So... specifically, which fertilizer should I look for? And how much should I use? The plant is VERY weak, and I don't want to overbear it, but it is about to die...

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Order one bag of FoxFarms Ocean (or Happy Frog if budget does not permit). It has all the nutes a young marijuana plant needs for at least 3 weeks. THEN supplement nutrients can begin.
In the mean time, get that PH test kit as no matter WHAT soil you buy, if you feed/water the plants with high or low PH water, their gonna die.

Alright, I will go out and get a PH kit, then get back to you on the PH of the water/ of the soil.

emmi420 said:

Alright, I will go out and get a PH kit, then get back to you on the PH of the water/ of the soil.

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Cool, will look for a post from you later.

emmi420 said:

Would superthrive be too powerful for it?

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More than a little debate surrounds the use of "Superthrive" and not just in cannabis in the growing community. Personally, I think it is snake-oil (Superjive) and simply yet another in a long line of formulations/tonics that have no basis in good botany or agriculture. Most of the proponents of this product use anecdotal evidence to back up the claims made by the manufacturer "man my plants really grew fast!" with little or no hard evidence to support it. I will never claim to be an expert on growing any one genus or species of plant but I do have a BS in Horticulture/Agriculture and I once did controlled studies of "Superthrive" on the flowering perennials Dianthus, Hemerocallis and Echinacea (Carnation,Daylily and Coneflower). The study was done under carefully controlled lab.-conditions and took 10 months to complete as I recall. After the endless hours of work and tedious measurements the product contributed exactly nothing to the overall plant(s) vigor, health, disease resistance, flower number or yield. Use it if you like but I am covinced it is a waste of time and money. Get a decent book on growing plants or even one of the numerous guides for growing cannbis available all over the internet and read, read, read. One other thing...the windowsill method is unlikely to produce anything other than spindly, sparse growth. The plants are stretching already looking for adequate light. Spend some time looking at the stickies for newbs, they have some good info. to help you with your first grow.

Carl Spackler said:

More than a little debate surrounds the use of "Superthrive" and not just in cannabis in the growing community. Personally, I think it is snake-oil (Superjive) and simply yet another in a long line of formulations/tonics that have no basis in good botany or agriculture. Most of the proponents of this product use anecdotal evidence to back up the claims made by the manufacturer "man my plants really grew fast!" with little or no hard evidence to support it. I will never claim to be an expert on growing any one genus or species of plant but I do have a BS in Horticulture/Agriculture and I once did controlled studies of "Superthrive" on the flowering perennials Dianthus, Hemerocallis and Echinacea (Carnation,Daylily and Coneflower). The study was done under carefully controlled lab.-conditions and took 10 months to complete as I recall. After the endless hours of work and tedious measurements the product contributed exactly nothing to the overall plant(s) vigor, health, disease resistance, flower number or yield. Use it if you like but I am covinced it is a waste of time and money. Get a decent book on growing plants or even one of the numerous guides for growing cannbis available all over the internet and read, read, read.

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Interesting post...What are your thoughts overall about nutrients?