First grow flowering issues

This is my first indoor grow and I'm having some issues and I hope someone can point me in the right direction on how to fix it.
Indoor grow in ffof soil with ffof nutrients once a week 1/4 strength.

Watering every 2-3 days with R/O water mixed with 2.5 ml of cal/mag per gallon, temps have been in the mid 85s during the day and 75 at night on a 20/4

Northern light autos micro grow on the 2nd week of flowering. I did make the mistake of switching over to bloom nutrients as soon as I saw a pre flower. Thanks for any help I can get!

nute burn seems like. flush with water and lay off the nutes, then watch for improvement in new growth. if nothing, then then test runoff water for PH level. adjust if needed. also consider the possibility of too much water. whats your light setup?

MarijuanaBug said:

nute burn seems like. flush with water and lay off the nutes, then watch for improvement in new growth. if nothing, then then test runoff water for PH level. adjust if needed. also consider the possibility of too much water. whats your light setup?

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Thanks for the reply.
I did a flush on Tuesday but only ran about 1 gallon of pH balanced water through a 2 gallon pot, with a pH run off of 6.6 . After the flush I added a small amount of bloom nutes to supplement the soil.

Light setup is: 1 75watt 3band UFO, x3 15 watt led light rails 2band, 1 cree led 2700k 18watt

Hmm, do you have any more pics? Was that pic taken after you flushed? Reason I'm asking is they look over watered and sort of n deficiency. I don't see any burned tips but my phone screen is small so I might be missing something. Most of the leaves look like a uniform lightish green on my screen but drooping like an over water issue

AlphaPhase said:

Hmm, do you have any more pics? Was that pic taken after you flushed? Reason I'm asking is they look over watered and sort of n deficiency. I don't see any burned tips but my phone screen is small so I might be missing something. Most of the leaves look like a uniform lightish green on my screen but drooping like an over water issue

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This picture was taken just as the lights turned on tonight. About a hour or two after the lights have been on they perk up. The tips do have a slight burn to them.

looks like some nute burn and too much water. I know you just flushed so they may perk up better in a few days. I would stop all nutes and cut back on the water until they begin to look happy again. Do you only have partial lighting at night? you have a big temp variance for a 20/4 schedule. try letting them stay warmer longer as well.

OrangeHaze said:

looks like some nute burn and too much water. I know you just flushed so they may perk up better in a few days. I would stop all nutes and cut back on the water until they begin to look happy again. Do you only have partial lighting at night? you have a big temp variance for a 20/4 schedule. try letting them stay warmer longer as well.

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Thanks for the information I'll lay off the water and nutes. I have the lights set to turn off durning the hottest part of the day and then turn on when the sun sets. I should of mentioned this is a pc grow so soon as the lights turn off the temps can drop pretty quick to mid 70s.

Also was wondering if anyone has any idea if these NL autos are a good size for being two weeks into flowering and if they will still have time to fatten up a bit.

AlphaPhase said:

Hmm, do you have any more pics? Was that pic taken after you flushed? Reason I'm asking is they look over watered and sort of n deficiency. I don't see any burned tips but my phone screen is small so I might be missing something. Most of the leaves look like a uniform lightish green on my screen but drooping like an over water issue

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Not N def! (Why does everyone say that?)
To much P, P tox!
To high a P "bloom" nutrient, way to early!!!!

Run straight pHed water for 2 waterings. Then switch back to veg nutes or switch to Dyna - Gro, Grow formula!

Go read Zander19's thread on "Why you need Potassium" and learn from the whole thread.

Oh, and BTW, no amount of added N will help that! It WILL cause different problems!

Dr. Who said:

Not N def! (Why does everyone say that?)
To much P, P tox!
To high a P "bloom" nutrient, way to early!!!!

Run straight pHed water for 2 waterings. Then switch back to veg nutes or switch to Dyna - Gro, Grow formula!

Go read Zander19's thread on "Why you need Potassium" and learn from the whole thread.

Oh, and BTW, no amount of added N will help that! It WILL cause different problems!

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I was afraid of that being the case of to much P from adding tiger bloom 9% as soon as I saw a pre flower, I'll know better for my next grow! I'll cut back on how much tiger bloom I've been adding and just run pH balanced water for the next couple waterings. Some good info on zanders thread. Thanks for the help I'll reply back when I start to see some improvements.

Dr. Who said:

Not N def! (Why does everyone say that?)
To much P, P tox!
To high a P "bloom" nutrient, way to early!!!!

Run straight pHed water for 2 waterings. Then switch back to veg nutes or switch to Dyna - Gro, Grow formula!

Go read Zander19's thread on "Why you need Potassium" and learn from the whole thread.

Oh, and BTW, no amount of added N will help that! It WILL cause different problems!

Click to expand...

Too much phosphorus (p) or too much potassium (k)? Because potassium tox causes n deficiency, maybe that's what you meant? What I meant and said is it looks n deficient which can happen when other elements lock certain elements out. T hen you can take the steps to find what caused the n lockout, and do what you've mentioned with pH waterings and catering to the nutes needed

AlphaPhase said:

Too much phosphorus (p) or too much potassium (k)? Because potassium tox causes n deficiency, maybe that's what you meant? What I meant and said is it looks n deficient which can happen when other elements lock certain elements out. T hen you can take the steps to find what caused the n lockout, and do what you've mentioned with pH waterings and catering to the nutes needed

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Yeah, I bonged up and crossed my P's and K's......Many years don't make you impervious to mistakes!
Still the point is correct.....sorry about the mix-up,,,,,
I'm so gassed...LOL

And no, it's P tox,,,no K intended,,,,whew, that 89 Chem dawg is an ass kicker!

Dr. Who said:

Yeah, I bonged up and crossed my P's and K's......Many years don't make you impervious to mistakes!
Still the point is correct.....sorry about the mix-up,,,,,
I'm so gassed...LOL

And no, it's P tox,,,no K intended,,,,whew, that 89 Chem dawg is an ass kicker!

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Lol, no worries man I know how that is, if you read some of my posts around the forum you'll know which ones I'm gone in lol. It's definitely a nute lock out problem for sure, if it's too much k causing an N deficiency or too much P causing a micro nute deficiency, definitely cut back on bloom boosters for sure

Thanks for clearing that up for me, I totally understand how it is

The NL is looking much better today not so droopy. I'm going to hold out for another day before watering and will wait till later in the week to feed. Any recommendations on how much tiger bloom I should be adding? Last time I fed I added 1.25 ml of big bloom and 2ml of tiger bloom with 2.5 ml of molasses to a liter of r/o water.

Update I haven't fed them anything since last Tuesday and was wondering if this much yellowing is normal for a auto in the 3rd week of flowering? Any comments welcome looking for any advice I can get. Thanks

Bump, would feeding this girl a small dose of grow big be a wise idea right now?

FF organic Big Bud is all I might give it at this point, every watering. Say for at least a week....
Auto's are fussy and I usually don't answer auto questions.....Less is more with them, just like Sativa's.

Thanks for the reply Dr and for the information. I'm looking for this auto to be done with as soon as possible, so I can move my snowcap into the flowering case that has been vegging for 2 months. It just started to show pre flowers in veg and is looking fantastic. The auto was a great learning experience, now let's hope it's kind enough to give me at least a 8th haha

Lavatube said:

Thanks for the reply Dr and for the information. I'm looking for this auto to be done with as soon as possible, so I can move my snowcap into the flowering case that has been vegging for 2 months. It just started to show pre flowers in veg and is looking fantastic. The auto was a great learning experience, now let's hope it's kind enough to give me at least a 8th haha

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Lavatube said:

Also was wondering if anyone has any idea if these NL autos are a good size for being two weeks into flowering and if they will still have time to fatten up a bit.

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When did it sprout? I know you said 2 weeks into flower, but I'm curious how old they are? I'll get you a photo of my NL autos today if I remember so you can compare. They started throwing out pistols this last Sunday (4 days ago...) and are 25 days from sprouting today...also what breeder is yours from?

Lavatube said:

Thanks for the reply Dr and for the information. I'm looking for this auto to be done with as soon as possible, so I can move my snowcap into the flowering case that has been vegging for 2 months. It just started to show pre flowers in veg and is looking fantastic. The auto was a great learning experience, now let's hope it's kind enough to give me at least a 8th haha

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I am running my first auto at the moment as well, I forgot I had one until it started flowering. It's a Himalayan blue diesel and it looks like I'll only get a couple of grams from it. It grew with no diffeciency and I have never evengave it any nutes lol. So wierd. II'll get a pic of it also for reference.