Edges yellowing (with pics)

I think the edges of my leaf is starting to yellow. It's very faint right now, but I want to jump on top of it quick if there is something wrong.

Setup
(3) 23w 2700k CFL's (12/12 from seed, that's why I have flowering bulbs in)
Fox Farm Ocean Forest
Neptune's Harvest Fish and Seaweed Blend (2-3-1)

The plant is 13 or 14 days old. It's been growing fantastic. I've only watered with nutes once. I used 1/2 oz per gallon as per instructed by hydro shop.

That was two waterings ago. Since then I watered once with organic agave syrup, and the last watering was just plain water. I plan on sticking to water+nutes, then water+agave, then water. It's in a small container now, so I'm watering every 2-3 days.

I've been watering with distilled water. When I first bought the gallon, the ph was nearly perfect. I assumed it would stay this way, but for some reason I decided to check the ph of the same gallon last night it was way acidic (I'd say 5.4-5.6). Would it be ok to wait until the next watering to water with corrected ph water? Or should I do it immediately?

Here is a picture, sorry it's out of focus but my shitty camera sucks at close up.

Note on the left most part of the leaf in the picture, the bright white spot is from my camera, it's not actually on the leaf.

bump.

sorry to bump already, but this forum moves QUICK.

To start distilled water is always around 7 PH due to it being neutral ( no ppm or ions) If you are measuring distilled water with a meter STOP or you will ruin the electrode. When I use distilled water(Run off from AC unit, purchased from store) I neveradjust the ph. I just pour it on the plants and that is all.

The problem is hard to diagnose by the picture but could be nothing at all. If it keeps getting worse I would then start to get worried about deficiencies such as nitrogen or cal/mag. Until then water with distilled only and see what happens. Does your nutrients have calcium and magnesium by chance? When using distilled water cal/mag is a very common problem but can be easily fixed

NewbGrower^.^ said:

To start distilled water is always around 7 PH due to it being neutral ( no ppm or ions) If you are measuring distilled water with a meter STOP or you will ruin the electrode. When I use distilled water(Run off from AC unit, purchased from store) I neveradjust the ph. I just pour it on the plants and that is all.

The problem is hard to diagnose by the picture but could be nothing at all. If it keeps getting worse I would then start to get worried about deficiencies such as nitrogen or cal/mag. Until then water with distilled only and see what happens. Does your nutrients have calcium and magnesium by chance? When using distilled water cal/mag is a very common problem but can be easily fixed

Click to expand...

Hey man. I use distilled water from a store. I don't have a meter, just the ph drops but thanks for the tip I'll remember that when I get my meter. I actually just read in another thread that using distilled water is bad. I just measured my tap water and it's perfect, so I'll be using that from now on.

I have no idea if my fertilizer has secondary nutrients. There is pretty much ZERO information on their website. I will be upgrading to fox farm, so maybe I'll do it sooner than later. I'll keep a close eye on it, and I will start watering with tap and see what happens.

+rep

Distilled has its opinions by many It has been shown to steal the nutrients in your soil/medium you are using since it has no ions in it being pure and acts as a vacuum when going through the pot and out the drainage holes and also can be said to cause damage to your root system. I use it with no problems at all for watering when not adding food. With its vacuum effect in my opinion it is great because after you feed the next watering any bad build ups left in your soil are flushed out. Think of watering when not feeding almost like flushing as well. Be careful with your tap though and let it sit in the sun for a day to hopefully remove some chlorine. Really though I'd recommend sticking with distilled for now and seeing how the leaf yellowing is going. Question though... Are the leaves at the bottom getting yellow the most or is it generally on all the leaves?

Below plant watered with distilled and nutrients only

NewbGrower^.^ said:

Distilled has its opinions by many It has been shown to steal the nutrients in your soil/medium you are using since it has no ions in it being pure and acts as a vacuum when going through the pot and out the drainage holes and also can be said to cause damage to your root system. I use it with no problems at all for watering when not adding food. With its vacuum effect in my opinion it is great because after you feed the next watering any bad build ups left in your soil are flushed out. Think of watering when not feeding almost like flushing as well. Be careful with your tap though and let it sit in the sun for a day to hopefully remove some chlorine. Really though I'd recommend sticking with distilled for now and seeing how the leaf yellowing is going. Question though... Are the leaves at the bottom getting yellow the most or is it generally on all the leaves?

Below plant watered with distilled and nutrients only

Click to expand...

I'll get full pics in a minute.

Let me ask you this, why is it that when I bought the gallon my ph drops read somewhere between 6.0 - 6.5 (it's so hard to tell with the damn color strips on the bottle). After a few weeks I tested again and it tested at ~5.4-5.6?

Heres some more pictures




looks like the bottom leaves are getting it the most. the leaves I posted early is still just the tiniest big on the edges.

Hmm I can't really say =/ I don't see how the PH would move around since it is distilled water. Since it has 0-10 ppm the ph should always be from 6 to 7 about. Distilled I have never been to accurately test until I add something to it. I will use distilled the first 2 weeks of veg and then start using distilled only until the plant starts to show me signs of hunger and i will feed again. In 1-2 days it is noticeably greener. Always feed a quarter of the actual stated dose on the bottle to play it safe. If the dose shows no sign of burn. Next dose just double the current (quarter dose > half dose)

I would say it needs nitrogen due to the yellowing being over most of the plant and working its way inwards from the outside of the leaf tips. A quick fix for now would be to transplant into a new container with some fox farm OF so it can pull some nitrogen from the soil. It most likely is rootbound as well. Make sure to really give it a good watering after the transplant to saturate all of the soil.

NewbGrower^.^ said:

I would say it needs nitrogen due to the yellowing being over most of the plant and working its way inwards from the outside of the leaf tips. A quick fix for now would be to transplant into a new container with some fox farm OF so it can pull some nitrogen from the soil. It most likely is rootbound as well. Make sure to really give it a good watering after the transplant to saturate all of the soil.

Click to expand...

Do you think it leeched all the available N from the ocean forest already!? Everyone told me that FFOF would be too hot for a seedling. Is it possible that I'm experiencing the start of nute lockout because the distilled ph was so low? I mean I left the gallon open for a little while, but I didn't think that would do anything.

Also when I transplant should I water with nutes or just use water for now and let my baby leech from the new FFOF and then use nutes next watering? Should I step it up to the recommended dosage on the bottle? (I halved it last time) It's only 2-3-1 so that's a pretty mild fertilizer right?

I emailed the company asking them about secondary and micro nutrients in their product.

Stop giving it nutes,
And if you haven't, then give a little more N,
one thing about plants is, you really never know the answer 100%.

FFOF is fine for seedlings and is my favorite seed starter to this day. I will only use distilled with it and I get perfect plants everytime (used about 30-40 diff strains) I find the plants start to show hunger for nitrogen at about 2-3 weeks of using distilled only but remember I am using 24 hours for veg. At 2-3 weeks though I will give them their first feeding at super low dose. Always better to play it safe since a nute burnt plant is harder to get going then one with a deficiency. I wouldn't feed after the transplant and wait for the next watering to see how it is looking then.

Nice Ol Bud said:

Stop giving it nutes,
And if you haven't, then give a little more N,
one thing about plants is, you really never know the answer 100%.

Click to expand...

I've only fed it once with nutes, but twice with agave syrup for carbs.

NewbGrower^.^ said:

FFOF is fine for seedlings and is my favorite seed starter to this day. I will only use distilled with it and I get perfect plants everytime (used about 30-40 diff strains) I find the plants start to show hunger for nitrogen at about 2-3 weeks of using distilled only but remember I am using 24 hours for veg. At 2-3 weeks though I will give them their first feeding at super low dose. Always better to play it safe since a nute burnt plant is harder to get going then one with a deficiency. I wouldn't feed after the transplant and wait for the next watering to see how it is looking then.

Click to expand...

Thanks a lot for the help, now I just need a new container!

Just got this from Neptune's Harvest

Seems like a good mix of stuff but see how the PH is 3.6 ,that will drop your ph pretty well with distilled water so hopefully the drops/color ph tests showed the ph low after you mixed them. More reliable nutes like Foxfarm,Botanicare,Humbolt,Advanced to name a few will really help you in the long run since they are well known to do wonders with mary jane.

NewbGrower^.^ said:

Seems like a good mix of stuff but see how the PH is 3.6 ,that will drop your ph pretty well with distilled water so hopefully the drops/color ph tests showed the ph low after you mixed them. More reliable nutes like Foxfarm,Botanicare,Humbolt,Advanced to name a few will really help you in the long run since they are well known to do wonders with mary jane.

Click to expand...

Well I tested plain distilled, but after I tested my run off. There's a good chance I didn't wash out my tester enough, maybe a few drops were left over. Since the ph of my nutes is so low, what is that going to do to my soil? Should I test my ph after I add my nutes, then adjust the water+nute solution? This is my first time growing with nutes

I'm actually out of distilled water but I just added some nutes to my tap water (which is perfect alone), and it tested between 5.5-5.8. Again it's so hard to tell on these fucking ph drops!!! But it's light (less orange) than 5.0 and darker than 6.0 (more orange than yellow) haha.

I don't have a ph up or down solution, hasn't arrived yet. I know sodium substances are supposedly bad for cannabis, but can I get by with baking soda (sodium bicarbonate) to get it back between 6.2 and 6.8?

I wouldn't add nutes for now, just a transplant and plain h20. I bet that would get it going and stop the yellowing.

Ok I got it transplanted. Hopefully it'll get better.

Here's the root system right before transplant



Here are pics from the morning after the transplant.

View attachment 1319243
View attachment 1319244