Need help diagnosing potential overfeeding

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Dazartim

New Member
Growing indoors 5x5 tent with a 1000w MH in a cool tube.
3 White Widow feminized from Crop King Seeds (side note: out of 10 seeds these 3 are the only ones to germ)
I water when they lose most of the water weight
Growing in peat moss with dolomite and perlite mixed in (store bought mix)
Plants are about 5 weeks out of seed. Still vegging
Temps are around 27-28c during the day consistently but gets down to under 20 sometimes at night. Humidity is around 35%. They have dealt with the low humidity and temp range well throughout growth so I doubt it has suddenly become an issue.
They have been fed twice in their whole life, the first time I used a 1/2 strength solution of AN Sensi Grow and B-52 which caused some burning. It was only a couple weeks in and was clearly too much. I fed again about 4 days ago with the same strength solution as they are much larger now.
There are 3 plants, one topped, one fimmed (I think I fucked it up though), and one only LST'd. The fimmed one is largest and seems to have the issues worst of all.
They have all had some defoliation to different degrees
This is my first grow

Hey guys, this is my first post here, spent some time lurking trying to learn what I can but now I need some help.

I've noticed over the past couple days the tips of new growth are getting a bit yellow. Some leaves are becoming pale and folding up as well, mostly near the top of the plants. Some leaves are getting purple spots near the tips too. Some of the stems are turning a deep purple as well, but they have had some purple in them from the start so I figure that's not a problem. I want to switch to flowering soon but I'd like to make sure the girls are as healthy as possible before starting. What do you guys think?
 

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phil k

phil k

Well-Known Member
look i get the whole deficient thing in the right cases.. he's a new grower i will put almost anything on the fact his ph is off or something other than deficiency to get deficiency in plants with just proper basic feeding is highly unlikely until your plant reaches a certain height and size. you and bushy plant especially are much less likely to get deficiency when using proper feeding.
 
Resinhound

Resinhound

Well-Known Member
could be ya,either way he needs micros.Old phil could be right about the PH,but generally peat is pretty acidic anyways and thats the end of the scale micros normally like.
 
phil k

phil k

Well-Known Member
one quick thing too your getting a bit of tacoing in the leaves not like overfeed taco but heat taco i know you say it stays stable at 82 but are you certain about that with 1000w. in a 5x5? a lot of the times when you see that its revolving around higher temps.. which can also cause some uptake issues

Dazartim said:
Growing indoors 5x5 tent with a 1000w MH in a cool tube.
3 White Widow feminized from Crop King Seeds (side note: out of 10 seeds these 3 are the only ones to germ)
I water when they lose most of the water weight
Growing in peat moss with dolomite and perlite mixed in (store bought mix)
Plants are about 5 weeks out of seed. Still vegging
Temps are around 27-28c during the day consistently but gets down to under 20 sometimes at night. Humidity is around 35%. They have dealt with the low humidity and temp range well throughout growth so I doubt it has suddenly become an issue.
They have been fed twice in their whole life, the first time I used a 1/2 strength solution of AN Sensi Grow and B-52 which caused some burning. It was only a couple weeks in and was clearly too much. I fed again about 4 days ago with the same strength solution as they are much larger now.
There are 3 plants, one topped, one fimmed (I think I fucked it up though), and one only LST'd. The fimmed one is largest and seems to have the issues worst of all.
They have all had some defoliation to different degrees
This is my first grow

Hey guys, this is my first post here, spent some time lurking trying to learn what I can but now I need some help.

I've noticed over the past couple days the tips of new growth are getting a bit yellow. Some leaves are becoming pale and folding up as well, mostly near the top of the plants. Some leaves are getting purple spots near the tips too. Some of the stems are turning a deep purple as well, but they have had some purple in them from the start so I figure that's not a problem. I want to switch to flowering soon but I'd like to make sure the girls are as healthy as possible before starting. What do you guys think?
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phil k

phil k

Well-Known Member
Resinhound said:
the only person who has said anything about magnesium in this thread is you bro....seriously dude get your head out of your ass.
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do you read posts... it was the very first post on here to reply to him.. r u seriously going to be stupid enough to attack me and say I'm saying anything about it being a mag issue? when all i did was inform him that chances are its ph? where r u lost at?and your jumping on saying iron.. which is even crazier to suggest..
 
phil k

phil k

Well-Known Member
bkbbudz suggested it was a mag issue and i suggested something else.. get your story right
 
$bkbbudz$

$bkbbudz$

Well-Known Member
phil k said:
bkbbudz suggested it was a mag issue and i suggested something else.. get your story right
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Just for the record I said MANGANESE not MAGNESIUM...

C'mon fellas be nice and don't jack this guys thread...he's looking for help not bickering...just sayin
 
D

Dazartim

New Member
Water going in is ph'd to about 6.5 when there is no nutes, but the sensi grow nutes are ph perfect and balance to 6.5 automatically. I do have very alkaline tap water and it's possible I didn't adjust down the ph enough. I fed one with a little bit of nuted water waitng to see the results at the moment. I have never seen the temp over 30c, not to say that it's impossible that it has gone over but I can't imagine how. Forgot to take pics of it but the leaves at the very bottom of the plants are yellow all the way through and partially dead on the tips. These are just the absolutely bottom leaves though (not cotyledons, the single blade leaves that grow after them). So should I look for a micro nute additive too?
 
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phil k

phil k

Well-Known Member
Dazartim said:
Water going in is ph'd to about 6.5 when there is no nutes, but the sensi grow nutes are ph perfect and balance to 6.5 automatically. I do have very alkaline tap water and it's possible I didn't adjust down the ph enough. I fed one with a little bit of nuted water waitng to see the results at the moment. I have never seen the temp over 30c, not to say that it's impossible that it has gone over but I can't imagine how. Forgot to take pics of it but the leaves at the very bottom of the plants are yellow all the way through and partially dead on the tips. These are just the absolutely bottom leaves though (not cotyledons, the single blade leaves that grow after them). So should I look for a micro nute additive too?
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what do you fill a single gallon and then ph it? or do you do a 5 gallon?

generally tap takes about .8-1.2ML of general hydroponics PH down per 5 gallon bucket to take my tap water from 7.4 down to 6.5 .... a single gallon takes about 3 drops sometimes 4... generally alkaline soils will have a bit different of a look to it. almost like a outline on the leaf. If your PH balancing your water i would almost bet your issues are with acidic water being fed more than anything.

What are you using to read and PH balance your water? do you have a meter or are you using paper/chemical tests?

you shouldn't be having deficiency and the way the yellowing is occurring your looking more like a acidic lock out more than anything. when you get to be deficient its very clear and your leaves have a much different look to the leaves than just light yellowing. when you have acidic water being fed the colors lighten a lot because nitrogen slows.

Having a manganese deficiency is quite uncommon too its a micro nutrient but to BKBs credit the uptake of manganese also really slows at 6.0 and lower... so if your feeding acidic water along with your PH perfect your plants really are never getting flushed... all that acid is building up in the soil and chances are thats more the issue.

since you feed chemicals you really can just use your dechlorinated tap water once a week without adding acid to the water to ph balance it.
 
phil k

phil k

Well-Known Member
$bkbbudz$ said:
Just for the record I said MANGANESE not MAGNESIUM...

C'mon fellas be nice and don't jack this guys thread...he's looking for help not bickering...just sayin
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I'm sorry that was my fault i mis read the post ... but come on.. manganese is even more of a stretch to have a deficiency on..chances are theres a different issue stoping the plant from proper uptake as opposed to needing anything.
 
SnaFuu

SnaFuu

Well-Known Member
Guys

This plant is hungry

Feed it

phil k said:
I'm sorry that was my fault i mis read the post ... but come on.. manganese is even more of a stretch to have a deficiency on..chances are theres a different issue stoping the plant from proper uptake as opposed to needing anything.
Click to expand...
You're a goof
 
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