Hey RIU! First, I'd like to say thanks for taking the time to read this and thanks for the help I know ill receive from here! Well here's the deal, this is my first time growing anything at all. I'm using coco coir, hydro rock, 600w HID, 4x2 tent and fox farms trio pack. The plants are two weeks from seed now and some of the bottom leafs are yellow and crumble to the touch. As soon as I notice it I flushed with 2 gallons of ph'd water. Plants are in 2 gallon pots. My question is how should I use the nutrients? Searched throughout the site and couldn't find the answer. Please help!!! Ill get pics up ASAP.
Please help! First grow not working out!
- Thread starter Justindee
- Start date
Jozikins
Well-Known Member
Fox Farm has a feeding schedule, you can grab it from their website. Always start at 1/4 or 1/2 strength with products you aren't familiar with until you find out what your plants can handle. Often enough they can't go over half the recommended feeding. Since they are young I would start with 1/4 strength or less. Do you have the proper instruments to measure ph and ppm? If not, you need them.
GOD HERE
Well-Known Member
If you're going to use nutes that young, be very careful. I wouldn't recommend it. Use a small fraction of the recommended dose. Don't drown your plants either. You're going to have to post pics to get a definitive answer from someone.
loquitocache
Member
Dont think you need nutes till its hit flowering, but im just a noob. All I know is for 2 week old plants it is too early for nutes.
RetiredMatthebrute
Well-Known Member
no nutes for 3-4 more weeks, your overfeeding
so I should just give them plain ph'd water and it should clear up in about a month?
I may be wrong but from what I read the coco requires nutes. Just don't know how much and how early to start them on it
Yes I have a ph and tds meter. What do you recommend the ppm be? Also on my next go round how soon should I start using nutes?
Jozikins
Well-Known Member
Most text books will tell you to start feeding very light after the first two weeks if the seedlings show signs they are hungry. Start young plants off at 250 ppm and bump it up slowly as the weeks go on. While they are young just do bumps of 50 parts.
I think about half of us here on RIU use Jorge Cervantes' Grow Bible, and I would recommend using that as a reference. With how fast cannabis horticulture is gaining popularity with the new acceptance of cannabis, the book is already a little bit dated, but very useful. There is a new edition coming out soon, but I would definitely grab the most current edition in the mean time.
I think about half of us here on RIU use Jorge Cervantes' Grow Bible, and I would recommend using that as a reference. With how fast cannabis horticulture is gaining popularity with the new acceptance of cannabis, the book is already a little bit dated, but very useful. There is a new edition coming out soon, but I would definitely grab the most current edition in the mean time.
Thanks, I really appreciate the help and insight. I actually just ordered his book Friday haha. Hopefully it'll be here soon. My gf just let me know that they appear to have some small black spots also ah what a mess! I have. Pic from the other day where I just noticed some slight yellowing.
This picture is from the other day before the issue really set in. They look MUCH worse now and as soon as I'm home from work ill post recent pictures. The wet tag idea I like. I also looked into puttin a small bowl of water near one of my passive intakes and oscillating fans. And advice on that?
Ninjabowler
Well-Known Member
Ya wanna know whats wrong with your plants? Answer me this, how much fertilizer is in coco? The answers none. Your plants are hungry and the yellowing is from nitrogen def. the cody leaves have enough nutrients in them to get them to the first set of leaves. After that they need more food. The two week thing holds true if your using soil....with nutes in it...not nutrientless coco. Feed them and they will be fine and do some reading on how to feed coco. And to the guy who said they dont need nutes till flower, go chase parked cars genius, your plants will be dead long before flower if thats what you think 
Ninjabowler
Well-Known Member
1/4 strength MAX, less is better right now
definitively speaking coco isnt dirt so it doesnt follow dirt rules
kill yourself, not this guys plants
bang on newb, you rock!
matt your killing me here
nope, thatll make it worse
200-250 to start, your tap waters probably 100ish or it can be much higher. Remember this when your adding your nutes. It cant just live off water, it needs food. Foxfarm ocean forest can go almost forever without food but coco or promix need fertz to survive.
@ the op im a newb too, reading deeply into every aspect of your equation will get you a higher number after the equal sign...catch my drift
I have been feeding every other watering at around full strength. Like I said I'm new at this but don't think lack of nutrients is a issue. I'm open and willing to take advice and experiment though. For the fox farms what do you reccomend as far as feeding?Ya wanna know whats wrong with your plants? Answer me this, how much fertilizer is in coco? The answers none. Your plants are hungry and the yellowing is from nitrogen def. the cody leaves have enough nutrients in them to get them to the first set of leaves. After that they need more food. The two week thing holds true if your using soil....with nutes in it...not nutrientless coco. Feed them and they will be fine and do some reading on how to feed coco. And to the guy who said they dont need nutes till flower, go chase parked cars genius, your plants will be dead long before flower if thats what you think
I'm definitely going to follow your advice and I appreciate your time! I'm new so am experimenting. Luckily their only bagseed. Figured I better test my system an experiment with free seeds before buying. Thanks again man!1/4 strength MAX, less is better right now
definitively speaking coco isnt dirt so it doesnt follow dirt rules
kill yourself, not this guys plants
bang on newb, you rock!
matt your killing me here
nope, thatll make it worse
200-250 to start, your tap waters probably 100ish or it can be much higher. Remember this when your adding your nutes. It cant just live off water, it needs food. Foxfarm ocean forest can go almost forever without food but coco or promix need fertz to survive.
@ the op im a newb too, reading deeply into every aspect of your equation will get you a higher number after the equal sign...catch my drift
Jozikins
Well-Known Member
How long have you been doing that for with the seedlings?