Cud my Light be too close ?

[Jonnypierce]

Hi everyone I've currently got 5 green gelatos grown from seed In coco I'm currently 14days into flower and some of the tops of my plants seem abit off to me like really bright yellow as you can see in the pics, my question is do you think this cud be light damage from lights been too close ? I've got 2 660 w hps lights In there and an iongrid t24 250w led in there on 100 % led is 18 inch above and hps have been 14 inch above thankyou for any advice ps my room is 1.2 x1.2 x 2 m

 

[2Bad]

I’d say yea

 

[Jonnypierce]

I’d say yea

Thought so pal I moved them all up a couple of inches just to be safe l, thankyou

 

[Aqua Man]

Look like a micro deficiency… see the color is fading from the middle out? Light bleaching does the opposite.

id say its and iron deficiency and the likely cause would be PH to high in the media

what nutrients are you using?

what ph adjusters are you using?

how often and hiw much are you watering

 

[Jonnypierce]

Look like a micro deficiency… see the color is fading from the middle out? Light bleaching does the opposite.

id say its and iron deficiency and the likely cause would be PH to high in the media

what nutrients are you using?

what ph adjusters are you using?

how often and hiw much are you watering

Hiya pal I'm just using sumo a + b , sumo boost, rhizotonic and calmag 1.3 ec I've not been adjusting the ph or even checking my ph coz my ph pen broke weeks ago and everything seemed dialled in and I've not changed anything nutrient wise since then, as for the watering I'm just feeding once daily as soon as the lights come on I'm feeding till I get decent runoff which is taking 3 ltrs now

 

[Moshmen]

Hiya pal I'm just using sumo a + b , sumo boost, rhizotonic and calmag 1.3 ec I've not been adjusting the ph or even checking my ph coz my ph pen broke weeks ago and everything seemed dialled in and I've not changed anything nutrient wise since then, as for the watering I'm just feeding once daily as soon as the lights come on I'm feeding till I get decent runoff which is taking 3 ltrs now

Aqua is ur man he will be back but sure sounds like ur getting to much dry back , need to increase fertigations would be my first thought ? Am I close ?

 

[Aqua Man]

Hiya pal I'm just using sumo a + b , sumo boost, rhizotonic and calmag 1.3 ec I've not been adjusting the ph or even checking my ph coz my ph pen broke weeks ago and everything seemed dialled in and I've not changed anything nutrient wise since then, as for the watering I'm just feeding once daily as soon as the lights come on I'm feeding till I get decent runoff which is taking 3 ltrs now

Yeah bro id say the PH is the issue… you may need to feed more often but im all but certain your runoff ph and ph in the rootzone is going to be to high

 

[Aqua Man]

Next feed run 2-3x the pot volume through to help reset. If you can its really important to get a new PH pen. Coco is not so forgiving with PH as it contains no buffers

 

[Jonnypierce]

Next feed run 2-3x the pot volume through to help reset. If you can its really important to get a new PH pen. Coco is not so forgiving with PH as it contains no buffers

Okay bro thankyou

 

[Jonnypierce]

Okay bro thankyou

Hi aqua man so the ph pen I thought wasn't working actually is working so I've been and collected the run off from 2 plants the main offenders and these are the readings I'm getting

 

[Jonnypierce]

Hi aqua man so the ph pen I thought wasn't working actually is working so I've been and collected the run off from 2 plants the main offenders and these are the readings I'm getting

Normal tap water

 

[Jonnypierce]

Normal tap water

Would this be causing the issue ? I know 7 is slightly high but wud it cause this ?

 

[Moshmen]

Would this be causing the issue ? I know 7 is slightly high but wud it cause this ?

Again not a coco guy but I’m pretty sure you should be shooting closer to the 5.8/6 range

 

[Aqua Man]

Would this be causing the issue ? I know 7 is slightly high but wud it cause this ?

Yea it would

 

[Aqua Man]

Again not a coco guy but I’m pretty sure you should be shooting closer to the 5.8/6 range

Yup this ^^^ id expect to see it in anything over 6.5

 

[Jonnypierce]

Yup this ^^^ id expect to see it in anything over 6.5

Thankyou for your advice much appreciated next feed I'll shoot for the 5.8/6 range

 

[Jonnypierce]

Again not a coco guy but I’m pretty sure you should be shooting closer to the 5.8/6 range

Thankyou for your input bro it's much appreciated next feed I'll get the ph down

 

[DaKine808]

Are they air cooled hoods? That doesnt seem too close to me.

Ph in coco adjust every time you water to 5.8 and keep it there. What is your ec? You could also be pushing too much K thats causing P lockout.

 

[Jonnypierce]

Are they air cooled hoods? That doesnt seem too close to me.

Ph in coco adjust every time you water to 5.8 and keep it there. What is your ec? You could also be pushing too much K thats causing P lockout.

Ec is 1.3 qnd no the6 aren't air cooled just the cheap arse ones bro

 

[WrappedUp]

+1 on Ph iron deficiency

I grow in Hydroton, sometimes 60/40 Coco
I’ve ran a ‘un Ph’d’ crop in the past. Had the exact same issue.
Also had problems with Sulfur.