WW- can't raise ph- runoff tested

[kbc2007]

See pic. Both are WW, only the one on the right is having problems.
I tested the ph of the runoff and it's stuck at 6 or below.
I tried adding ph up and still nothing, more ph up, nothing.
I flushed with lots of water and the runoff still reads 6 or below.
WTF?
There is obviously a problem. Bottom leaves are turning brown and becoming crispy.

This is my soiless mix.
2 parts Promix
1 part Perlite
2 tbsp per gallon - Bone Meal
1 tbsp per gallon - Blood Meal
1 tbsp per gallon - Dolimite Lime
In the future I'll be adding 2 tbsp per gallon Dol lime.

Here's the rest of the info.

Cannabis strain: white widow
Seed or clone: seed
Age of plants: three weeks
Height of plants: 8"
Growing phase seedling, vegetative or flower: veg
Technique: none
Pot sizes: not sure
Substrate/medium: see above, promix, perlite
Nutrients used (brand name) water ratio & Frequency: 3-1-3 "Total Nutrition" Plant Food. Also has 9 other minerals (mg, etc.)
TDS/EC/PPM of nutrients used: not sure
PH "RUN-OFF": 6 or below
Method of pH test administered, strips, pen etc: liquid 3 drop tester
Frequency of watering: every 4 days or so
My last feeding was: today
My feeding schedule is: once a week
My lighting is: 400w hps
Distance to the canopy: one foot
Relative humidity: 30-50%
Canopy temperature: 80
Day/night temp: 63-83
Current air flow: more than enough
Fan is blowing directly at plants: yes
Substrates condition, wet, dry etc: wet
Hard or soft water: 7
Water source, tap, and reverse osmosis (RO),
bottled, well, distilled, or mineral: tap
Recent pruning cloning or pinching: no
Insect or bug infestation: no
Pest chemicals used: If so, what and when: no


THANKS IN ADVANCE!

 

[sirgrassalot]

I don't think they were hungry today maybe a leaching with 20-25% nutrients would have been better. How are they looking now after lunch? My first observation is that they've been over fed. That's quite a look they have I've not seen that before or to that extent. WW I've heard should only be fed 70% nutrients in vegetation. What type of pro-mix you using & you're saying the last feeding was last Monday before today's? How much are you giving them & when did they start to look like this?

My water is 7 - I use straight promix bx - feed 5-1-1 - I do not need to pH. So lets get to the bottom of this. I've been taught to feed every watering in pro-mix at least 15-25% up to 40% to avoid nute lockout. This happens often when the plant gets a heavy dose one watering & plain water the next. The plant goes wtf I better save what nutes I have causing some issues.

 

[kbc2007]

It is a strange situation seeing as the other plant is fine.
It is the promix bought at Lowes, the standard stuff.
I water plain and then do a water with full ferts. The ferts are 3-1-3. I was seeing a N def. in another plant so I bought some fish 5-1-1 and fed it that last watering on Wed.
This problem started four days ago and it's getting worse fast.
I have more seeds so if I kill this one it's no biggie, I'll learn.
Seems like a sensitive plant. My Cali girl in the same mix is doing incredible!

sirgrassalot, you just use straight promix-bx, no perlite, lime or anything else?
Good to know.
What size are your containers and how often do you water?

I may start another seed and just use promix-bx and the fish ferts.

 

[sirgrassalot]

The standard stuff is BX or HP correct? I have a perpetual so I'm in all sizes. I don't let the pro-mix dry out completely but drier is better than wet. (if you have a problem not knowing by the plants appearance) I only mist seedlings for the first 2-3 weeks maximum, once daily.)

So you fed 6 days ago than it started 2 days later there abouts...Why don't you flush the plants with a 15-25% fish solution (This is a leaching solution & works better than plain water) since I think plant 1 is on the verge of looking like plant 2. Do that for 2 waterings. Than observe but I would look at full dose @ that time 3rd feeding - 70% for WW, observe. In veg it'll set you back a week, bloom you're messed up.

You could wait till they're fairly dry & transplant into some fresh pro-mix. Shake the roots clean from as much substrate as possible first. Feed solution the same.
If you want to go the straight pro-mix & it's BX you can add 15% perlite to the mix.

Sensitive girl, yes. btw I'm a big TPB fan

 

[MynameStitch]

You want your pH to be where it is at 6 or below, but 5,5 or above, your using promix which is soiless your pH is fine.

How often are you feeding your plants and how much? You say once a week, every 5 or 7 days? Your plants look like they have too much nutrients available to them, they have the claw look to them and the lower leaves are crisping. So what I would do is flush them out with plain water, nothing added.
The amount of nutrients you are using is important, because if you are using as per directions you are burning them.


OMFG I Know who you are now sirgrass, you were previously banned and kept going around here chatting, use promix and you won't ever need to test your PH, I kept putting a finger on who you were and now I Know for sure, go take your bullshit chant somewhere else. HAHAHA, now I know why you go around spreading bullshit information and not knowing wtf you are talking about. Makes perfect sense now.

 

[sirgrassalot]

Yeah I'm everyone you think I am. I think you're delusional.

 

[MynameStitch]

No, I now know who you are 100% for sure this time, you screwed up!

 

[Guest]

See pic. Both are WW, only the one on the right is having problems.

Hi Kbc

both your plants are overwatered. The big wide droopy leaves are the indicator. The roots don't develop when the soil is kept too wet so the top grows faster than the roots. The roots can pick up lot's of water so they don't have to grow but it ends up starving the plant in the long run.

Your soil mix is a bit heavy 2 promix to 1 perlite and is holding too much water or you're watering too often. I use 2 promix -1 vermiculite-1 perlite.

You have to get a good water cycle established. Water every 3-4 days at a minimum and stick your finger in the soil to feel for dampness and heft the pot for wieght. You'd be surprised at how long it takes for the plant to dry out the soil.

 

[kbc2007]

Great, thanks.
I was watering every week, like every 7-8 days.
They weren't really growing so I thought there was a nute def.
That's why last week I changed the rotation and added the fish 5-1-1.
I guess that was a mistake.
I think I'm going to get a calendar and start writing everything I do down. Then I'll resist the urge to water more than once a week. It gets confusing when there is more than one strain going, all with different container sizes.

Thanks all.

 

[sirgrassalot]

I would use the 5-1-1 in Veg over the 3-1-3

 

[MynameStitch]

I would not use the 5-1-1 sirgassalot has no idea what he is talking about and is making an assalot out of himself.

5-1-1 is good but you keep using that and your plants will lack in the P and K even though theyh are in veg they need small amounts of it, but I have seen it time after time, you keep using it as a stand alone and your plants will be more hungry and if you up the dosage you end up giving your plants a nitrogen toxicity, all of grass's post's is junk and he has no clue wtf he is talking about and most of his posts are a few lines and a waste of bandwith.

 

[sirgrassalot]

snitch I use that for Veg & early bloom never an issue. Care to show me how my plants are lacking in what they need? Show us your grow? The one you have growing now, not any prehistoric grows. Get with the times.

 

[DrLongbottom]

Try transplanting those lil ones into some bigger pots....and stop feeding so early...There is almost no reason a plant needs any food whatsoever in its first month of life. DLB

 

[Guest]

Great, thanks.
I was watering every week, like every 7-8 days.
They weren't really growing so I thought there was a nute def.
That's why last week I changed the rotation and added the fish 5-1-1.
I guess that was a mistake.
I think I'm going to get a calendar and start writing everything I do down. Then I'll resist the urge to water more than once a week. It gets confusing when there is more than one strain going, all with different container sizes.

Thanks all.

7-8 days is a bit too long. You soil is definately holding too much moisture.
My soil mix is 2 promix - 1 vermiculite - 1 perlite and I water every 3-5 days, less as the plant becomes rootbound.

I've seen lot's of 50/50 promix/perlite soil mixes. Cannabis likes well drained soil.

I wouldn't worry too much about nutes right now. I use fish 5-1-1 in early veg and would be swinging over to my veg nutes with about that much growth.

One of the problems I've run into also is when I have a couple of plants that are all different sizes. You water the big ones that are thirsty and give the little ones a drink at the same time. This keeps the little ones too wet and they end up stunted while the big ones thrive.

 

[kbc2007]

Thanks Red.
Part of the soil I'm using is your mix, 2 promix - 1 vermiculite - 1 perlite.
I mixed up some more and only used 2 promix - 1 perlite to save money.
In the future I'll use a 50% promix - 50% perlite mix.
Thanks!