Help - Plants Leaves - Whats the problem?

[DopeyChick]

Please see pictures in my gallery

How long has this problem been going on? 1 week or so
What STRAIN are you growing? AK48
What was the establishing technique? (seed or clone?) seed
What is the age of your plants? 1 month old approx (were growing on windowsill until lamp arrived - long story)
How Tall are the plants? tallest plant (only one with problem so far) - 6/7" (bit spindly due to being grown on windowsill originally - will plant deeper when I repot)
What PHASE (seedling, vegetative or flower) are the plants in? vegetative
What Technique are you using? (SOG, SCROG etc) new to this - dont know what SOG/SCROG are
What size pots are you using? (Include how many subjects to pot) 1 plant per 4" pot
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) regular potting compost - no vermiculite :blush:
What Nutrient's are you using?How much of each with how much water? How Often? *Knowing the brand is very helpful* Miracle grow, not very much in water but was using every watering - not when seedling
What is the TDS/EC/PPM of your nutrients used? NPK 24-8-16
What is the pH of the "RUN-OFF"? dont know
What method of pH test was administered? Using Strips? pH pen? none
How often are you watering? when top of soil is dry
When was your last feeding and how often are you feeding? was feeding with every watering, last 4-5 days ago
What size bulb are you using? CFL blue 150watt 6400k
What is the distance to the canopy? distance from top of plant to bottom of bulb - 4/5" moved plant over so not directly under bulb incase marks are scald marks)
What is your RH Factor? (Relative Humidity) dont know
What is the canopy temperature? with fan on - 25 degrees C, fan off - 30 degrees C
What is the Day/Night Temp? (Include fluctuation range) about the same as above
What is the current Air Flow? (cfm etc.) dont know
Is the fan blowing directly at plants? no
Is the grow substrate constantly wet or moist? moist
Is your water HARD or SOFT? soft
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? tap
Has plant been recently pruned, cloned or pinched? no
Have any pest chemicals been used? If so what and when? no
Are plant's infected with pest's? no

 

[MynameStitch]

How often were you watering your plants?


regular potting compost - no vermiculite :blush:

What mixture,need to know the brand.

How much mg with how much water were you using?
Your plants are a little burned with the MG...... I would not use it every watering if I were you, and you are supposed to only use 1/4 of a teaspoon per gallon of water weekly every 7 days.

DEpending on if your mixture already had ferts in it, determines when you should feed.....

Newly transplanted soil you want to hold off on feeding them right away.

AS for this, this looks more like a burn than anything else.

Your nutrient you have is too strong and not balanced, if you want to use MG, get tomato plant food and use the same dosage I gave you, the NPK ratio you are using is not balanced, too much nitrogen and too little P, even though they are in veg and need more nitrogen, but you will quickly get nitrogen toxicity if you keep using it and will cause a balance problem with other nutrients.

So I would flush your plants with around 1 gallon of water ran through it.

Wait on feeding them for a bit until they recover. The more light they have, the more food they eat, the bigger the plant the more food they eat, always go by the size and lighting you have when it determines how much food to give and never listen to the directions on feeding unless it's made specifically for cannabis.

 

[DopeyChick]

How often were you watering your plants?

When the top soils was dry and they felt kind of lightish


regular potting compost - no vermiculite :blush:

What mixture,need to know the brand.

Homebase Enriched Compost (enough feed for 6-8 weeks plus moisture retaining gel, also contains West+, a new alternative to peat)

How much mg with how much water were you using?

probably too much

Your plants are a little burned with the MG...... I would not use it every watering if I were you, and you are supposed to only use 1/4 of a teaspoon per gallon of water weekly every 7 days.

DEpending on if your mixture already had ferts in it, determines when you should feed.....

Newly transplanted soil you want to hold off on feeding them right away.

AS for this, this looks more like a burn than anything else.

Your nutrient you have is too strong and not balanced, if you want to use MG, get tomato plant food and use the same dosage I gave you, the NPK ratio you are using is not balanced, too much nitrogen and too little P, even though they are in veg and need more nitrogen, but you will quickly get nitrogen toxicity if you keep using it and will cause a balance problem with other nutrients.

What would the best thing to feed them?

So I would flush your plants with around 1 gallon of water ran through it.

Wait on feeding them for a bit until they recover. The more light they have, the more food they eat, the bigger the plant the more food they eat, always go by the size and lighting you have when it determines how much food to give and never listen to the directions on feeding unless it's made specifically for cannabis.

And thanks for replying

Also is there any growing guides on here? Or anything you suggest I read

Should I cut off the damaged leaves?

Kx

 

[MynameStitch]

Don't cut off anything with there size, if they were much bigger, yes; but right now no.

What kind of a guide are you looking for? Ones that teach ya to grow or look for problems?

 

[DopeyChick]

Ones that teach you how to grow please

Thanks

Kx

 

[ZoSo]

This should get you started.

Start reading through a bunch of the grow logs here. There is a ton of information to be found. Don't forget the stickies.

 

[selfprofider]

From what you state using rag potting soil usually has some fertilizer in it and I usually don't fertilize until the plant is a good size and doing well. The best learning you can do is by reading and good old practical experience
IMO
Later