NEED HELP - LEAF YELLOWING

[bungaraya]

Hi everybody, need some help with my plant here...

Here are the details . Hope to receive some help. Mind my super small grow box, I have to keep it discreet. Thanks in advance. Peace.


Type of breed: MONEY maker ( green house)
Age of plant: 4-5 weeks from seedling 
Medium: soil 
Size of pot : 5 litre
Temp during day: 31- 34 celcius (cant it keep it lower) 
Temp during night: 30 - 32 celcius (cant keep it lower)
Humidity during day: 55 - 65%
Humidity during night 55 - 65%

Watering Frequency: 1.5 litre every 4 days
Type of feeding: Powder feeding by green house seeds

Light : 100 w
Type: LED
2 feet x 2 feet x 3 feet (12 cu ft ) 
ventilation system : GOOD ( 4 units high speed fan ; 2 in , 2 out) 

 

 

Symptoms: Yellowing at the edge of the leave. Dries out after few days. Started from the oldest mother leaves. Spread to other mother leaves. 

[leyus]

Flush this plant with pure water. Most likely slightly burned, possibly nute lock. If after flushing for 10-14 days situation won't improve check your ph and if that is correct then it is deficit. If it turns out to be deficit then I am guessing cal/mag but too early to judge we must first be sure it is not a burn and it most likely is. Not a massive one so don't worry just flush and watch.

[NL Seattle Greg]

Aloha, You have a nutrition problem and with the high temperatures you will probably have some Pythium problems too. Keepin things cool is very critical. Here in Hawaii we have trade winds from the east.

[BubbaChuckKush]

Yes definitely give it a couple flush. They look a little deficient, but besides the little bit of yellowing they look pretty darn good. Sometimes a plant doesn't eat all the nutes you feed b/c the nutes don't always break down properly in your reservoir. If flushing it doesn't work add some kind of Zyme, I use cannazym. They break down your nutrients for your plant to eat easily! They are safe to add to any recipe, they have no npk numbers. GOOD LUCK!

[Dust]

hello, and what type of water you used? And how much feeding you use till now more or less?

And also 1,5L in 5L pot is a little bit high, it would be better to give something like 60cl every 2 3 days rather than 1,5 every 4 One basic rule of thumb says that 10% of the total size of your container is more or less what you should give to your plants, it is not a golden rule, it can be adapted depending on weather and all, but its a god rule to start

 

and for the plant it does look like she miss a little bit of something, do you have a way to measure your EC to check your runoff?

 

cheers