Deficiency or nute burn ?

So i have some Sour Diesel clones that are on their 1st week of flowering. Transplanted them into their 7 gal pot and think i might have burned them with the new nutes that i picked up. Even though i added half as listed. I also think the humidity might be a concern too .
Its currently raining and the humidity in the tent is 93% temp 68.

I also think it might be a N deficiency since the stem is floppy, and leafs are pale green with a dark green in the middle.

Any ideas?
Help a noob out

i dont see a problem, if u had brown spots, yellowing, or crisping its a problem.. those look fine to me..

you may have a mild def but nothing major. you should get a big fan or dehumidifier for the humidity (trust me mold is real and it will ruin your life). nitrogen defs are yellowing starting at the older growth so that's not it and nute burn looks like someone set the edges of the leaves on fire so no nute burn either. and humidity would mess with the stiffness of the leaf but not change the color

what nutes are you using. and the stem thing could be the humidity

Ok, I opened up the tent to get some fresh air going in there and it seemed to have worked.
I was thinking of getting a dehumidifier soon so i can avoid risks of mold.
As for the fan, I got a decent size house fan on 24/7

The yellowing on the leafs seem to be only on semi- new growth..

I used veg+bloom in veg and was working great, but decided to pick up some flowering nutes cuz i was a lil sketched out that a product could be for both vegging and flowering so the guy at the hydro store recommended i get botanicare cns17 bloom.
I did some research on it and not too many people have positive things to say about it

flying_panda said:

So i have some Sour Diesel clones that are on their 1st week of flowering. Transplanted them into their 7 gal pot and think i might have burned them with the new nutes that i picked up. Even though i added half as listed. I also think the humidity might be a concern too .
Its currently raining and the humidity in the tent is 93% temp 68.

I also think it might be a N deficiency since the stem is floppy, and leafs are pale green with a dark green in the middle.

Any ideas?
Help a noob out

Click to expand...

Hard to judge with 2 pics and zero info on your variables. (Temp, wattage, distance from light, temp of canopy right under bulb, EC, PH, day vs night temps, etc)


From what I see, you have a slight PH flux, and things look like they may be getting pretty warm for part of the day.

Reasoning:

Your new growth is a a bit morphed with curled/twisting leaves. 99% of times this is a PH issue. The light coloration of the new growth is also very uniform, which also leads me to believe the defeciencies your seeing are due to slight lockout (ph range being too far out of needed nutrient range), rather than there not being enough food available.

I also see some of the serrated leaf tips are curled up. Thats a good indication of high temps. If your not running a fan, get one asap.


Your humidity is also pretty high. Warmth and moisture does promote mold growth, so hopefully you havent contracted a pathogen. Once you start flowering YOU MUST drop that, to about 50%.




Are u in soil? Coco?

I would flush with 30% nute mix. 3x container size. Check the first bit of runoff to see ph of medium vs newly added nute mix. If its way high, or way low, adjust your input accordingly.

Wait a bit after flush and see what happens. If it fixed the problem you will see new growth gain chlorophyll within a week in soil and about half that in hydro.

Get that humidity under control or the entire grow will be pointless.

get yourself some general hydroponics maxi grow and maxi bloom. powder nutes, very inexpensive and ph balanced, cheap but great nutrients no aditives needed to get a good crop..ive used botanicare and it didnt live up to expectations, gh nutes blew it away in side by side testing...my resulTS PUT GH 3 part, nova and maxi 1st followed by plantlife 2 part, then fox farm foiliar pro, then bc, then a list of others, more expensive did not mean better..i think advanced 3 part is missing somthing as my plants didnt respond well to them nutes..however many friends use advanced and love it, it may have to do w/ the water used..ive found as i moved from chicago to michigan i had to switch from nova to maxi as maxi works better w/ the water here. in chicago nova worked better w/ the water there,,im talking tap water not r/o water..

Temp is 73°F lights on and 78 mid 80s lights off.. i run my lights at night. Humidity is at 68% today, usually around 60% to mid 70s

Light is a 250 watt hps and sits about 2.5ft off the plants.
I checked temp under bulb and it went up about 6° it was sitting at 79°.

Im using happy frog potting soil mix in a 7 gal pot .
I watered my plants yesterday with plain phd water and the runoff was at 7.0 so today ima check my soils ph to see what its at. Should i still flush even tho i watered yesterday or just wait a couple days

I don't see any evidence of nute burn. In the darker picture it looks like the larger leaves in the background are droopy. That would suggest either over or under-watering.

Good luck, BigSteve.

some more pics of the affected areas

TheChemist77 said:

get yourself some general hydroponics maxi grow and maxi bloom. powder nutes, very inexpensive and ph balanced, cheap but great nutrients no aditives needed to get a good crop..ive used botanicare and it didnt live up to expectations, gh nutes blew it away in side by side testing...my resulTS PUT GH 3 part, nova and maxi 1st followed by plantlife 2 part, then fox farm foiliar pro, then bc, then a list of others, more expensive did not mean better..i think advanced 3 part is missing somthing as my plants didnt respond well to them nutes..however many friends use advanced and love it, it may have to do w/ the water used..ive found as i moved from chicago to michigan i had to switch from nova to maxi as maxi works better w/ the water here. in chicago nova worked better w/ the water there,,im talking tap water not r/o water..

Click to expand...

I might just give maxi bloom a try, ive heard many good things about it. Whats that gh nutes your talking about ? Is that what ists called just gh?
I went with botanicare since the dude at the hydro store seemed to be riding their sack pretty hard saying he had great results. Might have to find me another hydro store

flying_panda said:

Ok, I opened up the tent to get some fresh air going in there and it seemed to have worked.
I was thinking of getting a dehumidifier soon so i can avoid risks of mold.
As for the fan, I got a decent size house fan on 24/7

The yellowing on the leafs seem to be only on semi- new growth..

I used veg+bloom in veg and was working great, but decided to pick up some flowering nutes cuz i was a lil sketched out that a product could be for both vegging and flowering so the guy at the hydro store recommended i get botanicare cns17 bloom.
I did some research on it and not too many people have positive things to say about it

Click to expand...

lol if your humidity got that high its probably because you have air moving in the tent but not circulating with fresh air.. am I right?.. a dehumidifier would bring it down but it would be better if you just found a way to get your girls more FRESH air so they can breath. as for your ph theyre right leaves twist when the ph is fucked. this can lead to lock outs which cause defs, but your leaves aren't twisted from the pics. and bloom fertilizer just means more P and sometimes more K (dependent on what you buy ) which can lead to bigger yields but aren't necessarily required. if your leaves were getting like a darkish blue hue and the veins were purpling they it would fix it..... this is what you do because I know your probably confused and frustrated right now.... since weve ruled out ph, go to google and search yellowing new growth and find the deficiencies that cause it. then look at what you've already put in at the ratios you've put in and see what comes up short

gh stood for general hydroponics brand.. they have a 3 part, the nova series which is a one part grow, one part bloom, and maxi grow and maxi bloom both can be used alone and work great...but i recomend on week 1 of flower to use both, in a 5 gal bucket mix 2 tsp of maxi gro and 3 tsp of maxi bloom, after week one of bloom use maxi bloom only..but u can learn to read ur plants and what they like and all my plants love the maxi series and produce way more than w/ any other nutrients ive tried..

They look good... Just give em time... They might be a lil droopy because of the humidity.. but Other than that I'd say your good to go.. Patience young grasshopper!!!!

+1 to the humidity. I lost most of my grow to mold. You should turn up your exhaust a bit.

Ok, so i went down to the store and got me a cheap dehumidifier and it seemed to fix the humidity problem. I run my lights at night so i was light proofing the tent not knowing i was suffocating my girls without any fresh air income lol

Any ideas on how i can get some fresh air into the tent, without buying intake and exhaust systems, but still keeping the tent light proof ?

As for the ph problem, i tested both plants soil and found the one on the left was off the scale at 8.5+ the other was at 7.3

I wouldnt be over watering it if i where to flush it tomorrow, when i watered it 2 days ago would I ?

flying_panda said:

Any ideas on how i can get some fresh air into the tent, without buying intake and exhaust systems, but still keeping the tent light proof ?

Click to expand...

Well if smell is an issue, then use a carbon filter and an inline fan as an exhaust. If smell doesn't matter, just use an inline fan as an exhaust. And for the intake, just use a piece of ducting as an intake, and curve it. No light should make it down the duct.

SmerkedOut said:

Well if smell is an issue, then use a carbon filter and an inline fan as an exhaust. If smell doesn't matter, just use an inline fan as an exhaust. And for the intake, just use a piece of ducting as an intake, and curve it. No light should make it down the duct.

Click to expand...

I found an exhaust fan for 40 bucks at the store ima go pick one up and try setting it up that way.. Smell isnt really a issue rite now, but i know later depending on how strong the smell is im gonna end up buying the filter out of paranoia lol

I got the temps and humidity under control.. the soils ph is at 6.8

is this normal ?
top leaves are getting brown spots n drying up