Help spot accured on my leaf

[seedinsoil]

Day 3 and some hours in flowering stage
And one off my plant is showing this spot on one off the leaf only. My humidity when light is on is 50 - 53 and when its off its rising to 60 im trying to fix that. But anyone else knows why this rusty Brown spot is on leaf. I did not use any neutrient, but i will use organic biobizz bloom next watering.

 

[OldOneEye]

At first blush looks like a Cal/Mag deficiency but the shape of the damage also reminds me of light damage, older damage maybe from a hot spot.

 

[seedinsoil]

At first blush looks like a Cal/Mag deficiency but the shape of the damage also reminds me of light damage, older damage maybe from a hot spot.

If this is cal mag deficiency will this biobizz bloom help thats the only thing i have for nutrient i also have some organic eggs shells i been collected from my own Breakfast

 

[Week4Bytch]

That usually comes with pH swings, did you pH your water? Was it off from the normal?

 

[seedinsoil]

That usually comes with pH swings, did you pH your water? Was it off from the normal?

Yes i do ph the water and i always trying to hit the yellow ph 6. But last time i watered i might have hit a light green 6.5 maybe even 7 but the green was light not dark. Could that be the reason.

 

[Week4Bytch]

Yes i do ph the water and i always trying to hit the yellow ph 6. But last time i watered i might have hit a light green 6.5 maybe even 7 but the green was light not dark. Could that be the reason.

Could be, these plants don't like large pH swings that much.

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy: Amazon.com: Industrial & Scientific

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy: Amazon.com: Industrial & Scientific

www.amazon.com

 

[seedinsoil]

Yes i do ph the water and i always trying to hit the yellow ph 6. But last time i watered i might have hit a light green 6.5 maybe even 7 but the green was light not dark. Could that be the reason.

Yo thanks

Could be, these plants don't like large pH swings that much.

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy: Amazon.com: Industrial & Scientific

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy: Amazon.com: Industrial & Scientific

www.amazon.com

View attachment 2364649

Yes i might go for it thanks for your time mate!