transplanted to 3 gallon pot recently
soil is EarthMother Groundswell (Sphagnum Moss, “processed forest product”, perlite, pumice and fertilizer)
germinated and planted about 7 weeks ago
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Your plants need every leaf they have to produce the sugars the plants need to be healthy. Pruning is generally only done to maintain good airflow within the plants’ canopies.
The height and development of the plant indicates that you need more lighting. You will have far, far better results with more lighting. What are you using to light the plants?
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Tek Light, 4 ft. long, (6) 54W florescent tubes
You are going to need red spectrum to flower a plant. Fluorescent lamps have very little red spectrum. I suggest an LED fixture built with Samsung LM301 diodes. Mars Hydro, HLG, and Spider Farmer are all good options. Suggest a minimum of 200 watts per plant.
A plant with adequate lighting should develop like this:
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Very nice looking plant you have there.
However, I am not planning to buy any new lamps, at least for this batch.
How to prune is the question and your answer seems to be “do not prune”.
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Correct.
Good luck with your grow.
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This was my first plant. My lighting was not sufficient and stayed very wide open (airy).
After getting the right light source plant 2 looks like this and needed pruned along the way. You should be able to find a full spectru. LED for around $125-175 and it will make a world of diffrence.
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There is a story behind my “choice” of lamps.
I inherited them from my brother who was killed by a car while riding his bike, circa 2007.
I had no idea he was growing weed.
Lamp was found in a camouflaged, foil lined closet in his house.
He had a reputation for making good soil.
This is the reason I am growing weed now.
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Im sorry for your loss. I too am new to this. Next grow you might try keeping the light closer to the plant earlier on if you haven’t. Also topping the plant at the 5th set of leave once the next set of leaves are about 1 inch above the 5th. This will help the plant to bush out and get stronger instead of taller. This is simply advice i have taken from others along the way and this is a great place to ask the questions. Lots good help out here!!! Happy growing!!
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This batch was unusual because I had trouble germinating the seeds. So the first plant got planted long before the others. So it was directly under the lamp until it got too tall, then I lowered it, until it got too tall… etc.
So all my plants are at different heights but they all seem to be getting a lot of light.
Next time I will germinate and plant at the same time.
Lots to learn in this new hobby. 
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Sorry to hear about brother. This light was likely used to start plants and veg them for a little early in their life cycle. It needs to be kept very close to plants otherwise what you have here will continue to happen over and over. If you plan to use this light for entire grow do a little bit of research specifically on growing with fluorescent lighting prior to starting your next grow. It will probably help you out quite a bit.
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Thanks for your reply.
What do you mean by “veg them”?
I may buy a new light for the next grow.
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We all tag team threads sometimes.
Cannabis grows in two stages.
Vegetation stage is the time from sprouting (or some may say after seedling stage) to the beginning of flower development.
Flowering stage has begun once the plant is developing visible pistils on the branch tops. Shortly before the flowering stage begins the plant will show a few pistils at the nodes where new stems grow from the main stalk. There are two types of cannabis. Autoflowering and Photo Period.
Autos will develop flowers no matter how many hours of light the plant gets. You can grow an autoflower plant to maturity under constant 24 hours per day of light.
Photos will stay in vegetation stage and continue to grow stems and leaves only until you reduce the light to 12 on 12 off and let the plant have 12hrs of complete darkness. Then it will grow flowers. I have a mother plant under 18/6 on/off lighting that is over 2 years old.
SO Vegging a plant simply refers to giving the plant at least 18 hours of light per day and giving it the correct spectrum as vegging plants prefer more blue light than red. Flowering plants do better with a more red spectrum. There are lots of lights that will cover both phases. Most modern light do.
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After reading your post again these lights are ok for AUTO FLOWER!! SO keeping the light closer while the plant is younger and topping at node 5 will definitely help u yield more flowers. I would read up on training( pulling braches down) to create a bush. Once the bush is doing well and the pistols start to show would be a good time to (Prune) taking the big leave off that are shading Pistol areas.
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@BebopSpeaks
Nice plants u got it go~N~ on
Congrats
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Love your user name!
Dinsdale, Dinsdale
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One of the plants grew right up to the light and got damaged before I noticed.
I did prune the damaged part at the top
Two new flowers developed.
Thought about Angus Podgorny but opted for Spiney Norman.
I loved that episode