help needed

[mr buddy]

last night I notices the newer leaves at the top curling up from the jaggy edges iv raised the 400watt hps iv re watered with just water. today I noticed another one doing the same they look healthy but I am now worried . what is this and why as it done this . so far the other 2 are OK . temp are 80f but have got higher on 2 occasion's were my lights came on in the morning but my air circulating fans didn't . only for an hr but temp did get 90f. as far as feeding . they are 3 weeks old and I started a week ago with a very small amount of coco a+b and a little bit of tomato liquid and they have been fine and come on well until this any advice plz would be great

 

[im4satori]

first thing

chill, your plants look great

im saying this because

what your seeing is the first and earliest signs of magnesium def
its so mild most people would not even notice it

when the leaves curl or fold upward along the margins like a taco or canoe shape is magnesium def

add 1/4 tsp epsom salt per gallon to add magnesium

 

[mr buddy]

first thing

chill, your plants look great

im saying this because

what your seeing is the first and earliest signs of magnesium def
its so mild most people would not even notice it

when the leaves curl or fold upward along the margins like a taco or canoe shape is magnesium def

add 1/4 tsp epsom salt per gallon to add magnesium

il go get some tomorrow many thanks . I really pay so much attention to them I notice the smallest of change in them . it's my 1st grow I have never done it before so want it rite . iv even set my timer to go off for 2 hrs in the day to give them a break from the 18hrs of light .. again thank you

 

[mr buddy]

first thing

chill, your plants look great

im saying this because

what your seeing is the first and earliest signs of magnesium def
its so mild most people would not even notice it

when the leaves curl or fold upward along the margins like a taco or canoe shape is magnesium def

add 1/4 tsp epsom salt per gallon to add magnesium

so do I just flush each plant with this till I see run off as I would with watering normally

 

[im4satori]

il go get some tomorrow many thanks . I really pay so much attention to them I notice the smallest of change in them . it's my 1st grow I have never done it before so want it rite . iv even set my timer to go off for 2 hrs in the day to give them a break from the 18hrs of light .. again thank you

its good your on top of it but
being hyper sensitive can cause more harm than good

lots of peeps see something small and mild

then try and correct it and make what was almost nothing into a big problem

so just don't be to quick to make drastic corrections to very mild issues

 

[im4satori]

so do I just flush each plant with this till I see run off as I would with watering normally

I wouldnt flush anything

just do what you normally do but add 1/4 tsp of Epsom to the water/solution before you water

when there a little bigger you can just top dress the 1/4 tsp of Epsom salt and water it in

 

[HydoDan]

I really think what you are seeing is mild heat stress from your fan malfunction.. If you started with good soil it shouldn't have a mag deficiency in three weeks.. imo

 

[im4satori]

I really think what you are seeing is mild heat stress from your fan malfunction.. If you started with good soil it shouldn't have a mag deficiency in three weeks.. imo

could easily be that

you could do nothing and see if it progresses

but theres also no harm in giving them 1/4 tsp Epsom salt

Im currently growing in fox farm ocean and it ran low on magnesium and calcium within 3 weeks but that's likely cuz they needed to be repotted

 

[mr buddy]

I wouldnt flush anything

just do what you normally do but add 1/4 tsp of Epsom to the water/solution before you water

when there a little bigger you can just top dress the 1/4 tsp of Epsom salt and water it in

thank you for your help

 

[HydoDan]

Little extra mag won't hurt a bit.. keep us posted..

 

[mr buddy]

I really think what you are seeing is mild heat stress from your fan malfunction.. If you started with good soil it shouldn't have a mag deficiency in three weeks.. imo

I have lifted the light to take heat direct away I added a bigger fan inside and it's oslolating and have one smaller one aimed at the plants between them and light plants have movement I have 3 thermometer's one at the top . one at plant level and one with a probe there is a window in the room I open for a bit fresh air . it's only twice the fans haven't come on when the lights do . I keep filter running 24/7 and have a tube heater in for when lights are off that comes on as lights go out

 

[mr buddy]

thank you all for your help .. also ph is 6.5

 

[HydoDan]

I have lifted the light to take heat direct away I added a bigger fan inside and it's oslolating and have one smaller one aimed at the plants between them and light plants have movement I have 3 thermometer's one at the top . one at plant level and one with a probe there is a window in the room I open for a bit fresh air . it's only twice the fans haven't come on when the lights do . I keep filter running 24/7 and have a tube heater in for when lights are off that comes on as lights go out

Sounds like a good setup... Should definitely keep you out of the 90s... 80s ok, 90s not so much!!

 

[mr buddy]

i

Sounds like a good setup... Should definitely keep you out of the 90s... 80s ok, 90s not so much!!

il keep you all informed as to what happens next . thank you

 

[mr buddy]

rite Epsom salts gone in today . I mixed a bit with 2 ltr of evian bottled water I gave them all a small feed with it just under a ltr between the 4 plants . heat I managed to get down to 77f 78 f so fingers crossed they will be OK .. gonna leave them on the light cycle of 18/6 as I don't want to stress them with change yet as I was gonna go with 8hrs on 2 hrs of 8 hrs on. . I must admit it's only been 2 hrs since I watered them with Epsom salts and they do look a bit better

 

[im4satori]

they do respond quickly to Epsom

if I spray it I can see the leaf margins unfold/flatten in a few hours

 

[mr buddy]

they do respond quickly to Epsom

if I spray it I can see the leaf margins unfold/flatten in a few hours

so u spray the leaves

 

[im4satori]

so u spray the leaves

if the def is advanced or for a quick response you can safely spray ESTABLISHED PLANTS 1/4 tsp per gallon and again 3 days later if necessary

don't spray during bloom

but if the def is mild and early just add it to the root zone

and consider adding it on the regular thereafter

yours is less than mild if even

so just add it to the root zone

 

[mr buddy]

if the def is advanced or for a quick response you can safely spray 1/4 tsp per gallon and again 3 days later if necessary

don't spray during bloom

but if the def is mild and early just add it to the root zone

and consider adding it on the regular thereafter

there 3 weeks old and I noticed it yesterday I did post a few pics in my listing of how they look . I just added it to the salts to the water today and watered as normal about a ltr between 4 plants . only 2 are showing any sign of the curling

 

[im4satori]

there 3 weeks old and I noticed it yesterday I did post a few pics in my listing of how they look . I just added it to the salts to the water today and watered as normal about a ltr between 4 plants . only 2 are showing any sign of the curling

sounds about right

correction to my last post!!!

those are small plants..so just dose them the one time
if your in soil you may not want/need to add it every time you water

when you repot into larger pots you may not need supplementation as often depending on whats in the soil and the pot size vs root ball and so on

as the new soil becomes depleted you may need to add some
but a fresh pot of quality soil should have magnesium in it

as the plants root zone expands thru the pot the magnesium become depleted