Having an issue with some new plants

Allister

Allister

Active Member
I have some plants that are a little over a week old. On the first set of true leaves and now on the second just along the edges, I am getting a light green - yellow color. It starts at the tip of the leaf it looks like and works its way up the entire leaf. I don't know if it is some nute problem or if it is too much water or what. Any input would be appreciated! Also, notice the curling on the leaf... Can anyone tell me what is going on here?
I transplanted the plant directly into FFOG after it germed, so I thought that the soil might just be a little hot but I am not good at reading my plants yet and would like some advice from you vets out there!View attachment 1403148

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Thanks for your help in advance!!
 
php134

php134

Member
Looks like salt lock up flush with water they will be fine don't give nuits for at least a week.
 
Allister

Allister

Active Member
Thanks for the help guys. I bought a ph meter for the soil but it didn't seem to work. Thought that it would be okay since it was just the soil out of the bag with some perlite mixed in. I will try to get by a garden center and pick up another ph monitor just to know for sure where I am at.
I am currently on a 20/4 light schedule and the only thing I did to these plants was to take the rockwool cube and plant it in the soil when the seeds germed. I didn't expect that there would be anything right off of the bat that would cause lock out. That is why I don't see how it could be salt lock up... they have only been getting RO water. No nutes yet.
 
Allister

Allister

Active Member
Also wanted to know what type of ph devices you are all using for your soil and water. I bought one form the local hardware store and it didn't work, so now I am going to spend the $$ I should have to get a good one. Any help is appreciated!!
 
Allister

Allister

Active Member
No, gonna pick some up when I go and get my PH equip. I was thinking of that and some dolemite lime to top coat with. But I need to get a good handle on the soil, water and runoff ph so that I will know where I am at.
 
N

new smokey

Active Member
Personally I don't think it's a ph problem. RO water has a nuetral ph as does organic soils for the most part. a soil ph meter is always good though.You can never have enough toys in the grow room.
 
Mother's Finest

Mother's Finest

Well-Known Member
A pH meter is the only actual tool a grower needs. We use pretty much the cheapest analog, probe-type meter available (~$15). The one time I sprung for the most expensive, digital pH meter there was, it read incorrectly straight out of the box. We always reccomend getting one of these probe-type meters as well as a capsule-type pH test kit. The capsule kit only costs about $5 and is used to verify that the meter is reading accurately. The capsules can also test the pH of dry soil, unlike a probe. Many stores sell even cheaper bags of replacement capsules.

The most important pH reading is that of the soil but it's helpful to have a liquid pH test kit as well. We use a kit made for swimming pools to test liquids because we can get the chemicals needed quite easily.
 
Allister

Allister

Active Member
I have to admit that I am stymied as to what it could be. Both plants have it to a degree. I don't think that it is light bleaching and it is up in the air if it is a nutes thing. But something is making the leaves look less than healthy and I would sure like to know WTF it is!
I bought one of the probe type meters, only to find that it didn't work... So I guess I will roll the dice and get another and hope that it works ok. But where do you folks find the capsule type PH testers at? I have not seen one of those yet!
 
Allister

Allister

Active Member
well, some of the leaves still seem to have it a little bit. I did pick up a ph meter for the soil, a ph pen for the water and runoff and some cal/mag that I am planing on using on the next watering to see if that makes them perk up a little bit. I did a lot of work in their room today and BS2 is looking like she didn't like getting moved and bumped into and generally accosted today.
 
Allister

Allister

Active Member
Ok, I picked up a probe type meter for the soil PH and a PH pen for the water. Today I watered with RO treated with a tsp of CalMag to a gallon of water. I watered until there was significant water in the catch tray. Then after letting it sit for about half an hour, I tested the water in the tray and it was coming up around 5.5. The soil tested out at right around 7. I was just wondering if this sounds about right for the conditions. I was under the impression that regular RO water would PH somewhere around 7. Did the CalMag bring the water PH down that much or what?
The soil reading doesn't really sound right or even possible, but I bought a cheap PH/Light/Moisture meter so it may not be right. The soil that I am using is FFOG right out of the bag with a little bit of Perlite mixed into it and in the bottom of the pot.
 
Mother's Finest

Mother's Finest

Well-Known Member
PH meters should read 7 when there's no pH reading available. Don't trust the meter when it reads 7 unless you check it with a second test because it may just be getting no reading at all. If you water with pure, pH 7 water and get pH 5.5 runoff, your soil pH could be as low as 4 (the average between 4 & 7 is 5.5). It is definately too acidic. They'll benefit from some lime since garden lime raises pH, neutralizing acids.
 
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