Super Lemon Haze Auto, Green House Seeds

[TonyGrow]

Hi everyone, I hope you can help me with a growth blockage, below are my growing conditions:

-Planted on 4/23/22 I am currently in week 5
-grow box: 1x1m
-lamp 250 w agro
-Light/dark cycle: 20/4
-Soil: Biobizz light mix
-Pot: air pot 13 l
-Water: tap water corrected to PH between 6.7 and 7.2
-Fertilisation: 2 ml biobizz phase grow on two litres of water once a week (for now)
-Extractor and intruder 24 h with internal fan
-Constant temperature between 25 and 27 degrees
-Humidity at 55-60 % (65-70 % the first two weeks)

These are 3 Super Lemon haze and one Barney's Glue ice cream, all of which grew regularly at first, except the 'Ice cream' which was always superior. Two of the three lemon haze have had a growth blockage since the middle of the third week and are now 37cm and 45cm respectively while the ice cream and the other lemon haze are 78cm and 75cm, but I can't explain this as the other two have grown normally and all under the same environmental conditions, do you have any suggestions?
As you can see from the third photo, by the third week they were all about the same height

 

[Creeperpark]

You have some nice strains friend. The growth blockage is caused from using tap water. I would use only RO or Rainwater from the beginning. If you switch waters now you will have to do it slowly or you will shock the plants even more. Use 75% old water and 25% new for a week and then 50/50 the next week and then only new water.. All your water should have a starting pH of 6.2
For the best growing results get yourself an EC meter so you will learn how many ppm or what's in your water.

 

[goingrey]

They look ok. Probably there is no "blockage". They are just not growing anymore because they are well into flowering and concentrating their energy on making buds.

Some plants are smaller than others. Especially so with autos that will flower when they want to, and not after you've decided they've grown big enough and change the light schedule. Also some plants stretch a lot during flowering and others don't.

 

[Creeperpark]

They look ok. Probably there is no "blockage". They are just not growing anymore because they are well into flowering and concentrating their energy on making buds.

Some plants are smaller than others. Especially so with autos that will flower when they want to, and not after you've decided they've grown big enough and change the light schedule. Also some plants stretch a lot during flowering and others don't.

He said growth slow down in the third week.

 

[TonyGrow]

They look ok. Probably there is no "blockage". They are just not growing anymore because they are well into flowering and concentrating their energy on making buds.

Some plants are smaller than others. Especially so with autos that will flower when they want to, and not after you've decided they've grown big enough and change the light schedule. Also some plants stretch a lot during flowering and others don't.

First of all, thank you for your reply.
Yes indeed they look good, the thing that makes me strange is that plants of the same genetics and in the same environment turn out to be so different in height, so I thought there was a blockage

 

[TonyGrow]

You have some nice strains friend. The growth blockage is caused from using tap water. I would use only RO or Rainwater from the beginning. If you switch waters now you will have to do it slowly or you will shock the plants even more. Use 75% old water and 25% new for a week and then 50/50 the next week and then only new water.. All your water should have a starting pH of 6.2
For the best growing results get yourself an EC meter so you will learn how many ppm or what's in your water.

Thank you for your answer!
As I live in the mountains, the spring water that comes out of my tap should theoretically be very pure, but it's no harm trying, thank you for the advice. Do you think that if I start with the dosage you suggested I could have better results and recover some height?

 

[goingrey]

First of all, thank you for your reply.
Yes indeed they look good, the thing that makes me strange is that plants of the same genetics and in the same environment turn out to be so different in height, so I thought there was a blockage

Probably Super Lemon Haze Auto is not a true-breeding strain (all seeds resulting in similar plants) but an unstabilized polyhybrid with a lot of variation.

 

[TonyGrow]

Probably Super Lemon Haze Auto is not a true-breeding strain (all seeds resulting in similar plants) but an unstabilized polyhybrid with a lot of variation.

It depends on how lucky you are then or the quality of the seed brand

 

[exploziv]

I am pretty sure most autos are far away from stable strains. no matter how much luck you think you're having or the quality of the breeder's brand.