Sick leaves Ph rising

[A. Jones]

Hello im currently at day 28 in flowering
600w hps
nutriculture amazon low pressure aeroponics
super silver haze
temperature 25-30C
humidity 50-65%
metrop nutes mr1 mr2 callgreen


During 3. week in 12/12 this started to appear on the biggest leaves.
Im using tap water 0,3EC adding mr2 and callgreen to keep the EC levels around 1.
Im trying to keep the PH level somewhere inbetween 5,5-6 but it keeps rising day by day. EC levels are slowly decreasing same time as the ph goes up.

What do you think could be the cause of this?
Could it be underfed? Should i increase the EC level?

 

[bigdad41296]

Very well could be underfed I'd bump it up to 1.2 try it there for a few days and see how she looks.

 

[A. Jones]

Very well could be underfed I'd bump it up to 1.2 try it there for a few days and see how she looks.

Hello and thank you. Raised the EC to 1,2 so we will see whats gonna happen.

 

[A. Jones]

Here is more pictures of the leaves sorry for bad photo quality.


Also some of lower leaves became yellowish and started to fall off.
Do you guys think it could be beginning of root rot? Roots arent slimy and ph is rising so i guess it shouldnt be.

 

[Skinny Leaf]

When ph rises the plant is uptaking nutrients. When the ph lowers the plant is uptaking more H2O than nutrients. You are making your plant go hungry. I suspect you have a small reservoir and the plants are using the nutes really quick. Keep an eye on the reservoir every day.

ph rises add nutes.
ph lowers add water.

 

[A. Jones]

some more pictures of leaves:

 

[A. Jones]

After i bumped the EC to higher values and kept maintaining proper ph levels i managed to finish the grow somewhat successfully. Thanks everyone for their help.

 

[Bongstar420]

Give a P boost.

Hello im currently at day 28 in flowering
600w hps
nutriculture amazon low pressure aeroponics
super silver haze
temperature 25-30C
humidity 50-65%
metrop nutes mr1 mr2 callgreen

View Image View Image View Image View Image
During 3. week in 12/12 this started to appear on the biggest leaves.
Im using tap water 0,3EC adding mr2 and callgreen to keep the EC levels around 1.
Im trying to keep the PH level somewhere inbetween 5,5-6 but it keeps rising day by day. EC levels are slowly decreasing same time as the ph goes up.

What do you think could be the cause of this?
Could it be underfed? Should i increase the EC level?

 

[PoweredByLove]

your plant is hungry. phos and cal and mag def.