Help with yellow spots on leaves

[BaronS]

Nah, that yellowing is (IME) going to progress through the plant unless the cause is addressed. If it was soil I'd say either too much water or too much fert.

 

This question of whether it's a drip feed or flood and drain should be answered. (are the feeding rings from a prior arrangement?)

 

On the viral line, I haven't seen the effect of 'tobacco' disease, which is a possibility in my case. Can anyone set that record straight?

[Jakeh_16]

nearby plant is a white rhino and its doing fine.

and its a flood and drain setup, the feeding rings is all i had, is the drip feed setup better?

[biggerbuds]

i no it was a bit late but this problem was a mix of low humidity & nute level to high + maybe heat from the lights.

 

i no this because i am using canna aqua & have been using it for a long time,i have seen the very same thing when i was overfeeding & had low humidity

 

trust me when you have low humidity you got to use even less food in the mix

[gitm69]

Whats up dude ?

 

Your plant has a magnesium deficiency, it usually does not show until the plant is over 5 weeks old, another thing you should be aware of is that its starting to develop a P deficiency as well (which you can spot by the small red stripes on the lower half of the plant)

 

Use a 1\4 of teaspoon of epsom salts per liter as a foliar spray once a day 2 hours before the lights go on if you can, if not then just before they go out. keep going until the spots are gone.

 

Id also pay attention to your nuts strangth since some of the lower tips have a sligt burn

 

Either way folier feed sould be used every 10-14 days not every day since it creates imbalances in nutrient uptake.

 

I also recommend taking the lights up to around 60-70 cm for the first 2 days to allow the plant to recover.

 

You can use the image i added to spot other issues with your plants

 

Cheers

[biggerbuds]

feeding this plant less food is all that needs to be done,very simple