Second seedling is going wrong...

Poobzilla

Well-Known Member


There's mine and another guys who is doing an auto. Still getting to grips with the site so having trouble narrowing the others ones i have seen down. They may not have started grow journals and may just have been other threads I have seen recently. But the amount of posts I have seen on WW since I joined last week is insane. Try a wee search and see what it brings up You might be able to filter by the grow journal room that you should see on the main page.
 

MICHI-CAN

Well-Known Member

testology1980

Well-Known Member
Ok this is getting worse.. the big leaves are getting yellow brown... (should I remove them?)
The soil is not so wet as it looks in the photo.

The light is 40 cm abouve now and its not hot, its 27- 26 Celsius.

Not sure if to start over, this time with very small pot and without giffy....



01.jpg02.jpg
 

Poobzilla

Well-Known Member
I think somebody said that your leaves might be a goner at this point but to keep an eye on the new growth. Based on that I would keep letting soil dry, think your looking for top layer of soils to be dry, probably about 10mm in a smaller pot. Don't know if you have anything to balance your ph yet, even just get some ph down, but i wouldn't go back to watering with the method your using currently.

Your new leaves seem a bit small to make a decision if they are going to go the same way. It wouldn't be a terrible idea to maybe start a new seed.
If you do, I started my seed by soaking 2 sheets of kitchen roll in water and squeezing off the excess, place on a small plate and cover with another 2 sheets of kitchen roll again squeezing any excess water off. Cover with another plate and put in a warm place, I put mine in my boiler cabinet. Started friday night and had 5mm taproots by sunday.
I then plant in a seedling propogator, I have this one https://www.amazon.co.uk/gp/product/B0060LT86K/ref=ppx_yo_dt_b_asin_title_o09_s02?ie=UTF8&psc=1, and I only used water(I fortunately have some of the best tap water in the world), but you can add ph down to solve your issue, until the first true leaves come through and start with the nutrients at half the recommended dosage. I have gradually increased nutes as the water in the tray diminished and they seemed to be happy. With my tray the soil is always moist due to the wicking mat so I took the seed tray out the propagator so the soil could dry a little to make it easier for re-potting. That's where I am at right now, just re-potted, and I started 4 fem WW seed from Royal Queen, all 4 germed but one didn't survive sprout.
 

ronintank

Well-Known Member
yes 8.5 big problem needs to be 6.3-6.8 for soil
buy ph down solution. if using nutes always add nute to water first then check ph then adjust down from there.
the seedling is not a goner. just looks to be over watered. For this stage of growth i use a spray bottle to water the soil, it's much easier to control the amount of water that way. For seedlings just use ph adjusted water no nutes for a while.
 

testology1980

Well-Known Member
Absolutely!! Shoot for about 6.3-6.5. Did it come with a powder calibration test kit?
Yes, and I calibrated it.
And I already had a drops test set, so they both shows 8.5 for tap water, 8.6 for the reverse osmosis water... this is strange.

yes 8.5 big problem needs to be 6.3-6.8 for soil
buy ph down solution. if using nutes always add nute to water first then check ph then adjust down from there.
the seedling is not a goner. just looks to be over watered. For this stage of growth i use a spray bottle to water the soil, it's much easier to control the amount of water that way. For seedlings just use ph adjusted water no nutes for a while.
Tomorrow I will buy ph down.
I am using bio bizz and thats put down the ph to 7.2 +-.
Yes I need to pass the seedling stage without any nutes...

Thanks you
 

manfredo

Well-Known Member
The rapid rooters have a learning curve too i have heard...Never used them myself. I have used the rockwool cubes and not with great luck. I'd say if you have another seed, may as well start it and then see which does better, but use the paper towel method then straight into soil. A new seed may do better.

I'm just starting some seeds myself, from 3 different places, and it's amazing the difference. It's been 2 weeks, and some are near 6" tall, while others are only just getting their 2nd set of leaves. Strains, genetics, how they were stored, etc., all come into play.
 

BuddingHorticulturist

Well-Known Member
Yes, and I calibrated it.
And I already had a drops test set, so they both shows 8.5 for tap water, 8.6 for the reverse osmosis water... this is strange.



Tomorrow I will buy ph down.
I am using bio bizz and thats put down the ph to 7.2 +-.
Yes I need to pass the seedling stage without any nutes...

Thanks you
Im using bio bizz as well. Make sure you get an ORGANIC pH up/down solution, not a salt based one. It will screw up the beneficial bacteria in your soil and lead to more problems.

google “organic pH up/down”. Lots of stuff around the house you could use.
 

testology1980

Well-Known Member
Isn't vinegar will do the job organically for lowering ph?
What am I missing, why do I need a special ph down solution?

Ok got myself a Johnny green PH DOWN PRO, starting over again..
 
Last edited:

manfredo

Well-Known Member
I found this post by another member, Roger Shrubber...I've never heard of "mother of vinegar", but....

general hydroponics ph up is potassium carbonate and potassium hydroxide....nutrients....
general hydroponics ph down is phosphoric acid and mono ammonium phosphate....nutrients...
no weird shit to sit in your medium and fester and promote pathogen growth....coffee has fats and esters to spoil and grow nasty shit...vinegar is the same, and will grow a nasty mass called mother of vinegar....just use ph up and down...IF...IF you need to make adjustments at all
 

Kushash

Well-Known Member
Ok, bought a ph meter, the ph is 8.5...
Can this be the problem?
I just skimmed and feel you are going in the wrong direction messing with PH.

My water has a high PH like yours and will grow a plant fine.

If your tap water is used by anyone in your area to grow house plants or is used to water a landscape and the growth is lush then the tap water will veg a cannabis seedling with no problem.

If the soil does not fix the waters PH by itself then you are using a poorly buffered poor quality soil and should try another soil.

Watering to often is probably one issue.
Not sure why a heat mat is being used unless there are temp issues. If there aren't temp issues I'd get rid of the heat mat.
 

BuddingHorticulturist

Well-Known Member
I just skimmed and feel you are going in the wrong direction messing with PH.

My water has a high PH like yours and will grow a plant fine.

If your tap water is used by anyone in your area to grow house plants or is used to water a landscape and the growth is lush then the tap water will veg a cannabis seedling with no problem.

If the soil does not fix the waters PH by itself then you are using a poorly buffered poor quality soil and should try another soil.

Watering to often is probably one issue.
Not sure why a heat mat is being used unless there are temp issues. If there aren't temp issues I'd get rid of the heat mat.
I would agree if his pH wasn’t 8.5. It’s way out of range, and in the short term his soil may buffer, but long term using a high pH will ultimately result in the pH of his medium to rise, and then he’ll be dealing with lockout at a point further down the road.

I don’t feel that adjusting pH is going to be detrimental to his grow (I have 8.5 pH water and ALWAYS bring my water in to the appropriate range and the plants look great), he just needs to do it with an organic option so as not to damage his soil microbes.
 

Kushash

Well-Known Member
I would agree if his pH wasn’t 8.5. It’s way out of range, and in the short term his soil may buffer, but long term using a high pH will ultimately result in the pH of his medium to rise, and then he’ll be dealing with lockout at a point further down the road.

I don’t feel that adjusting pH is going to be detrimental to his grow (I have 8.5 pH water and ALWAYS bring my water in to the appropriate range and the plants look great), he just needs to do it with an organic option so as not to damage his soil microbes.
You have a good point and pointed out something I thought about after I posted.
I agree long termhis tap should not be used.
My water is ph 8 and has a ppm of 400-500 on a 500 scale and I cut it with 2 parts Ro 1 part tap.

I agree with you long term but for getting a seedling to grow into a decent size plant, tap should work fine to get him started.
Just trying to get him past the seedling stage.

I'm not sure if that heat mat was causing problems.
 

manfredo

Well-Known Member
I know when the ph gets high in my cloner, growth stops....I can tell when the PH has gotten to high from that...I adjust the ph back into range, and wham bam thank you mam ;), they start growing again. I don't think PH is the entire problem but it's a factor, along with over watering.
 

Kushash

Well-Known Member
I know when the ph gets high in my cloner, growth stops....I can tell when the PH has gotten to high from that...I adjust the ph back into range, and wham bam thank you mam ;), they start growing again. I don't think PH is the entire problem but it's a factor, along with over watering.
Your cloner is hydro right, not soil I'm assuming.
A well buffered soil will correct the PH to what it needs it to be on it's own, this is the reason most tap waters with a high PH can be used on house plants and landscapes without the PH being adjusted.
 

BuddingHorticulturist

Well-Known Member
You have a good point and pointed out something I thought about after I posted.
I agree long termhis tap should not be used.
My water is ph 8 and has a ppm of 400-500 on a 500 scale and I cut it with 2 parts Ro 1 part tap.

I agree with you long term but for getting a seedling to grow into a decent size plant, tap should work fine to get him started.
Just trying to get him past the seedling stage.

I'm not sure if that heat mat was causing problems.
Could have been! I had a very similar problem when I started my auto grow. Curly leaves, etc. I couldn’t nail it down for sure, but, I had two feeds in a row where I neglected to pH my water and I overwatered. Once I reduced the frequency of my watering and got my pH into range the plants responded and thanked me immediately. I can’t be sure what the problem I experienced was, because I addressed my issues concurrently, but it helped immensely nonetheless. His issue very well could just be overwatering drowning out the roots leading to shoddy looking growth, but it could be a combo of both. I would err on the side of caution and get all conditions appropriately dialed in to nurture that baby back to health!
 

testology1980

Well-Known Member
I just skimmed and feel you are going in the wrong direction messing with PH.

My water has a high PH like yours and will grow a plant fine.

If your tap water is used by anyone in your area to grow house plants or is used to water a landscape and the growth is lush then the tap water will veg a cannabis seedling with no problem.

If the soil does not fix the waters PH by itself then you are using a poorly buffered poor quality soil and should try another soil.

Watering to often is probably one issue.
Not sure why a heat mat is being used unless there are temp issues. If there aren't temp issues I'd get rid of the heat mat.
Agree, and also the nutes are lowering the PH. I didn't mess with it last time, and it was ok.
But this time I can't make through the seedling stage from some reason.. the only different is another time of the year (winter).
The heat is only for the "night" but I yes that it another change from the last time.. I will remove it after the new seed will sprout.

And also this time I started seeds from nirvana.
The time before (I grew only one time before) I had PK seeds I got from a friend.

I am not an expert but I managed with the tap water.
Agree.
 
Top