Is this light burn or nute deficiency? First time grow

R

Redline Grow

New Member
Hi Guys,

First time grower here and this forum has been a useful resource for me. Unfortunately I'm having some kind of issue so now having to post myself..

Can anyone tell me whether this yellow dotting on leaves is light burn, nute burn or perhaps calcium / magnesium deficiency?

It looks to me like calcium is needed but I live in a hard water area so find that a bit surprising as I had read that if using hard water cal-mag would not be required.

Any help would be appreciated, also happy to recieve any other tips on my set up...

(please be kind re the 'scrog' , I'm actually removing and resetting it when I need to refill the humdifier - just using it to help train horizontally rather than a proper scrog grow)

Single Royal Queen Seeds Critical Kush (80% indica dominant)
6 1/2 weeks from when it hatched.
75cm x 75cm x 2m tent.
Switching between 250 / 400w HPS (600w bulb with dimmable ballast) to maintain lights on temps of between 25-28 degrees Celsius.
Lights always been between 12-18 inches above canopy.
Relative Humdity is kept between 50-70%.
Top feeding soil once a week powdered fish blood and bone mix.
Foliar spraying daily with seaweed.
Extraction is 6 inch AC Infinity.
1 desk fan for internal circulation.
 

Attachments

Powertech

Powertech

Well-Known Member
Hard to say, could be a number of different things with that lighting. Post pics with normal lights and you will get better help
 
R

Redline Grow

New Member
Only other thing I can think of is I recently repotted about a week ago as the soil was less than pot could take. I sprinkled some bone meal in the new soil before placing the root ball on top.. Wonder whether between the weekly fish blood and bone feed plus the bone meal and hard water it's resulted in too much calcium??
 
C

CannaCountry

Well-Known Member
Looks like a P issue (doesn't look like a Ca issue)...I would check your pH to be sure it's in range for your type of grow.

My only other guess would be perhaps it's locked out by all the stuff you're feeding weekly. Good luck friend.
 
R

Redline Grow

New Member
CannaCountry said:
Looks like a P issue (doesn't look like a Ca issue)...I would check your pH to be sure it's in range for your type of grow.

My only other guess would be perhaps it's locked out by all the stuff you're feeding weekly. Good luck friend.
Click to expand...
Right guys looks like it may be sorted now. Being a noob I made the mistake of flushing it yesterday as it was my first non-nute watering following repotting. I think that might have washed away all the remaining goodness in the soil.

What I've done now is feed my regular fish blood and bone mix plus for the first time a drop of calmag in seaweed water. Within a few hours I have explosive and vigrous new growth which isn't showing any spots or deficiencies in the leaves.

Only concern is I was planning to flip in 1 1/2 weeks which would be 8 weeks veg since sprouting. Am I okay to stick to that schedule or should I veg her a bit longer after this set back?
 
You must log in or register to reply here.
Top