Plant not growing any branches??? Please help!!

As the title says, my plant is not growing any side branches. I am at a loss really I've never seen anything like it. The plant is a feminized haze something photoperiod and about 3-4 weeks old, I have attached a pic of her sister(who is growing branches/nodes) she is a week older only but as you can see looking beautiful I think . I am a newbie this is my 2nd indoor grow but I have grown outdoors before. Light schedule is 18/6 on a 600w led ( tho I don't think it's light issue judging by seemingly 3 other plants doing fine) they are in the tent with two autoflowers that are flowering. I have not given any nutes besides adding recommended amounts of vermiculite and perlite to the pre bought soil from hydro shop. One of my friends reckons its a male?? But how can it be it was bought as a feminized seed from a very reputable place. Should I wait and see because she may be stretching quite a bit now and then later start popping off branches/ grow vertically into one big bud? or should I pull her/him and pop another seed? Am I being too quick to jump the gun and this may be a normal thing to occur with some strains? have I found some kind of monster that's going to grow into a tree? Any feedback will be much appreciated

Think you're jumping the gun a bit mate, I've had seedlings start to grow really early and with others its taken longer. Give it another week or so and I reckon you'll start to see branches grow. Cheers

IndoBlazing76 said:

Think you're jumping the gun a bit mate, I've had seedlings start to grow really early and with others its taken longer. Give it another week or so and I reckon you'll start to see branches grow. Cheers

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Thank you for your quick reply, I will wait another week or so and hopefully all is good!

I can see its stretched big time. See how high up your 1st set of leaves are. I would transplant to a bigger pot up to the first set of the single leaf. You will have branching just be patient.

Hey, really I am sorry to say it, but I must, it's a lighting issue and nothing more. Why do I say that, because when I look at each overall plant i can see that you are really taking care of them, each leaf looks wonderful, like they are getting all the nutrients they need, but then I look at each plants spacing, and see how super wide each node is being spaced out, and then how the stems on each fan leaf are stretching their selves way out, like the plants are telling me that they are endless searching for more light, and not only upward, but outward too! So, lower your lights, or try to add more to help those babies out, if you can.

indawindica said:

I can see its stretched big time. See how high up your 1st set of leaves are. I would transplant to a bigger pot up to the first set of the single leaf. You will have branching just be patient.

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Thank you very much, I will transplant her today into a bigger pot. I was just worried because last night my friend said it may be a male and then got me thinking too much I was just worrying about all these other things its so stressful haha but ty appreciate the help