Totally confused.

[Haze4dayz]

I have one Skunk automatic growing in reused soil which I recharged using Plagron Bio super mix before planting the seed.

The mix is 40/40/10/10

Vermicompost/Coco/vermiculite/perlite.

I am watering with pH 5.5-5.8

Biobizz nutrients (only fish mix and root boost at current stage)

Using cheap LED bulbs for light source.

Okay so now thats out of the way, here's my plant.

As you can see it's not very happy, I assumed the spotting was from foliar spraying with the lights too close. But it's doing strange things, the colouring is mottled on newer leaves on top as well, but in a different way.

One of the leaves has a strange whitish patch on top of the leaf, I don't think it's powdery mildew.

Any advice welcome and much needed!

Many thanks

 

[nizmoKush]

What type of water are you using??

 

[nizmoKush]

It looks like a couple things are happening with that plant.. im not sure but ph is a lil low since I don't think this would be a hydro type medium.

 

[Haze4dayz]

What type of water are you using??

I am using either water from my tap left to de chlorinate for several days before using, or bottled water from the supermarket from time to time. I use Canna organic pH down every time I water.

 

[Haze4dayz]

It looks like a couple things are happening with that plant.. im not sure but ph is a lil low since I don't think this would be a hydro type medium.

I tend to go to 5.5/8 because the soil always ends up more alkaline (maybe too much dolomite lime) or the Plagron stuff. Every time I test the soil its way above 7. Tried the distilled water slurry with pH pen, and also tested run off. Both of them were up near 8. Hence my 5.5-5.8 water to try to balance out in the middle somewhere.

 

[Haze4dayz]

Okay so pretty sure it was to do with the lights being too close. Didn't realise how strong those little LEDs are up close.

As you can see it looks completely different after just a couple of days:

 

[Proph]

Okay so pretty sure it was to do with the lights being too close. Didn't realise how strong those little LEDs are up close.

As you can see it looks completely different after just a couple of days:

View attachment 1269848

Lights being too close does not cause tip burn.. It also does not cause yellowing of the leaf margins, or rust spots. Looks like you removed some of the damaged leaves.. I still see the one leaf that looks like it has insect damage on it. Leaves don't repair themselves so it makes it harder to tell if the issue has been resolved or is getting better after you remove damaged leaves. If you look closely at your pics, you can see that multiple leaves are starting to show interveinal discoloration.. Meaning that the spaces between the leaves are starting to fade in color. The damaged leaves that were removed were showing signs of potassium issue.. The current leaves look to be at the start of a magnesium issue. I would check the ppms/ec of the plain tap water, I would cut back on the fish mix, as well as check the leaves for bugs (with a scope).

 

[Haze4dayz]

Lights being too close does not cause tip burn.. It also does not cause yellowing of the leaf margins, or rust spots. Looks like you removed some of the damaged leaves.. I still see the one leaf that looks like it has insect damage on it. Leaves don't repair themselves so it makes it harder to tell if the issue has been resolved or is getting better after you remove damaged leaves. If you look closely at your pics, you can see that multiple leaves are starting to show interveinal discoloration.. Meaning that the spaces between the leaves are starting to fade in color. The damaged leaves that were removed were showing signs of potassium issue.. The current leaves look to be at the start of a magnesium issue. I would check the ppms/ec of the plain tap water, I would cut back on the fish mix, as well as check the leaves for bugs (with a scope).

I'm sorry I should have fleshed out my response a bit more. I removed three leaves correct. I agree tip burn is not light stress. The deformed new growth that was appearing all over the top of the plant has stopped and resumed growing normally. I have given two plain pHd waterings to prevent nitrogen toxicity as I noticed leaves getting too dark, that has balanced itself out on the newer growth and has started growing at a much faster rate.

My tap water is extremely hard so I do not think calcium or magnesium would be deficient, I do have biobizz calmag but don't use very often due to hard water. Seeing theres a large amount of Coco in the mix I have wondered if I need to use it more often.

I have also treated using an organic pesticide spray from the local Jardineria.

I do have a bottle of organic spirulina K booster but has a little of N. I think it's K6:N1. If you think it would be wise I can add a little to the next watering.

 

[Proph]

I'm sorry I should have fleshed out my response a bit more. I removed three leaves correct. I agree tip burn is not light stress. The deformed new growth that was appearing all over the top of the plant has stopped and resumed growing normally. I have given two plain pHd waterings to prevent nitrogen toxicity as I noticed leaves getting too dark, that has balanced itself out on the newer growth and has started growing at a much faster rate.

My tap water is extremely hard so I do not think calcium or magnesium would be deficient, I do have biobizz calmag but don't use very often due to hard water. Seeing theres a large amount of Coco in the mix I have wondered if I need to use it more often.

I have also treated using an organic pesticide spray from the local Jardineria.

I do have a bottle of organic spirulina K booster but has a little of N. I think it's K6:N1. If you think it would be wise I can add a little to the next watering.

If anyone learns anything from me, I hope it's that "signs of a deficiency does not automatically mean to add more of some thing"..

Im not suggesting that you add anything. Just the opposite actually.. Im suggesting that you cut back.. Once you start learning how nutrients work with the plant and with each other, the issues will become easier for you to diagnose. Too much of one single nutrient can lock out serval others, making them unavailable to the plant. Once that happens the plant will show signs of being "deficient" when the issue is actually a lockout due to something being in excess.. That's why I suggested checking the ppms of your tap water...

Too much calcium can lock out magnesium and phosphorus... Too much magnesium can lock out calcium and potassium.. This will show up looking like cal/mag and potassium deficiencies, that are caused by lockout. I think the basics need to be checked, and if they are put of range, the feed/watering schedule should be adjusted accordingly. I'd check the ppm/ec of your run off water, your plain tap water, and I'd even check the ppm of the fish mix mixture before you use it again.

 

[Haze4dayz]

If anyone learns anything from me, I hope it's that "signs of a deficiency does not automatically mean to add more of some thing"..

Im not suggesting that you add anything. Just the opposite actually.. Im suggesting that you cut back.. Once you start learning how nutrients work with the plant and with each other, the issues will become easier for you to diagnose. Too much of one single nutrient can lock out serval others, making them unavailable to the plant. Once that happens the plant will show signs of being "deficient" when the issue is actually a lockout due to something being in excess.. That's why I suggested checking the ppms of your tap water...
View attachment 1269977

Too much calcium can lock out magnesium and phosphorus... Too much magnesium can lock out calcium and potassium.. This will show up looking like cal/mag and potassium deficiencies, that are caused by lockout. I think the basics need to be checked, and if they are put of range, the feed/watering schedule should be adjusted accordingly. I'd check the ppm/ec of your run off water, your plain tap water, and I'd even check the ppm of the fish mix mixture before you use it again.

This is why growing takes years to master, and I'm not even a novice yet

I don't have a ppm meter handy any more I'm afraid. Last time I checked the tap water ppm it was up around 790/800PPM. I remember it being very high with a pH of over 8.

I shall carry on feeding with just phd water for now and see if that helps. I might have used too much dry amendment. In which case I'm laying off all bottled nutes for the mean time.