growing from seed I would wait until the plant matures(alternating nodes), you will get a better quality weed for the wait. If you are growing a clone(which came from a mature plant) You can start flowering anytime without loss of quality. As far as topping goes I disagree with those who say it increases yield. While it does give you 2 colas, more if you multiply the process, the colas will not be as big as the original single cola would have been. If you are worried about vertical space I would say top them, but with a larger number of plants it will increase the density of your canopy and make it hard for light to penetrate the lower portions of the plant.
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Not to bust ya out or anything homie.but i have to dis-agree with some of the things you said
-(growing from seed I would wait until the plant matures(alternating nodes), you will get a better quality weed for the wait.)
wait for what? to switch? u diddnt say? but im guessing that you meant to..wait till the plant has got at least 3 foot tall.
(inless stretched cuz of bad light.-inthat case let it get 5foot..lol
.once you put it on 12/12 it will double if not triple in size
.....(If you are growing a clone(which came from a mature plant) You can start flowering anytime without loss of quality.)
u wont lose quality,but you will lose quanitie
even if ur are cloning,u would still want to veg that plant for at least a month before turning to 12/12...bigger plant,bigger buds..
u can take clones after clones and create a sea of green..no stops between veg,flowering & harvesting...
I am logging off for the night, have a good one, and hope the plants continue to do well.
Thx FC i checked it out and still unsure what it is im guessing the yellow tips r from too lil Nitrogen or too much. might be Magnesium also. and the spots on the other 1 looks like ozone damage more then ph but i have no ozone thingy so i guess it a signs of ph being off or even nute burns lol all the problems look to samehttps://www.rollitup.org/marijuana-plant-problems/38772-guide-diagnosing-plant-problems.html#post404474
This guide shows some common deficiencies and the symptoms associated with them.