HELP! Spots on plants

[Desil14]

I am currently in week 10 from seed for both of my autos. My gorilla glue auto grew very slow in the beginning with no training until recently it finally caught up with the much faster growing dark devil auto. My gorilla glue has been getting droopy With some nutrient burn on the tips. My dark devil has leafs with some brown spots on them and other leafs that seem to be wind burned (I’m thinking) but are away from the fan. What can be causing this and is it causing my flowering to take longer than the 10 weeks the breeder said it would take? I also noticed the tips on a couple leafs turning purple/red, is this normal?

I’m running the bubble ponics setup described on GWE although I use a 18 gallon container. I use the GH flora nutrients with hydro guard and follow the nutrient schedule posted on GWE and have been doubling the amount of hydroguard due to high temps although now that temperatures are falling it’s easier to keep it within 70-80 F. Humidity hasn’t been a problem keeping it below 50% (I even have a dehumidifier for those last couple weeks or incase I have an issue) in the flowering stage and never went above 60% in the veg. I Ph it down to 5.5-6.5 using GH Ph testing kit. I also use tap water.

[CaptainWiese91]

Of course it’s making your flower period longer.
If you have root problems, nute burn etc. all will contribute to a longer flower period and almost also loss in yield. When growing autos.
this is why I don’t think an auto is a good beginner strain.

What kind of medium are you using.? What is the Ph in that medium and your water feeding ?

[ChadWestport]

That looks like the beginning of a calcium deficiency. So yes, it is a root zone issue and having the proper Ph is important because certain nutrients, like calcium, can get locked out if the Ph is not in the desired range. Are you using coco or soil? Coco by nature needs extra cal/mag compared to soil, even so, if not using cal/mag in soil you can still run into a deficiency. Also, the desired Ph range is slightly different for each of the mediums.

At this point, it should not prolong your harvest date.

[ChadWestport]

Which picture has the leafs curled up? Is it the tips that are curling or is it the entire leaf is standing up towards the light, kind of like praying to it?

[Desil14]

The first two pictures at the top show the curling. It’s not all the leafs only some. The entire leafs curl down. My other plant in the same res (different strain) just keeps growing leafs and barely fattening the buds.

[ChadWestport]

Not exactly sure what to make of that. Glad you got some cal/mag on the way, I have a feeling it will help.

[CaptainWiese91]

Maybe a calcium deficiency? Maybe some nute burn? I see already burned leaf tips.
without any info it’s hard to make a diagnosis and give clear and helpful answer. In my opinion

[Desil14]

Once I noticed the burn I changed the water and put less nutes in but the spots and curled leafs are still happening although it’s not affecting the whole plant. I am new to the forum/process so what other information would you need?

I’m running the bubble ponies setup described on GWE although I use a 18 gallon container. I use the GH flora nutrients with hydro guard and follow the nutrient schedule posted on GWE and have been doubling the amount of hydroguard due to high temps. I Ph it down to 5.5-6.5 using GH Ph testing kit. I also use tap water.

[dphipps1020]

Add some CalMag and you should have a little better luck. I use tap water but still throw in some CaliMagic.

[Desil14]

Thank you for all the advice I just ordered some Cali magic and a carbon filter since my whole house is starting to stink 😍