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My friend's first grow

farmthekush

New member
before I'm doing my own first grow I'm helping a friend with his first.

my new units (2xmars pro 320):



Previous pictures of the plants:



2 plants suspected as male were thrown out to be left without care at all but somehow recovered and started flowering again.

one plant (the left one) has been trained a bit more and progressed to flowering nicely.

our plan is to take that plant and introduce it with the new light (current light is 250 hps) and a new Reptile UVB bulb.

and maybe if the current plant will like the new light we'll continue the 2 previously suspected males with the 2nd light.


main concerns:
1.can the plant stress from the new lights?
2.when and how long should i use the UVB bulb? (read that in the 4 peak noon mid 12 hour cycle)
3.the lights are really really powerful , should this be a concern in a small tent with one plant?(i can dim it to be less harsh tho).



posted this in a hurry but I'm really excited for this.. would like to hear you guys opinions!


UPDATE ASAP
 

adrenaline

Member
ICMag Donor
Hey farmthekush, those plants look fine, as far as getting stressed from the different light goes, they will recover, it is something to be expected.. I wouldn't worry about the power of the light being too much, as long as you keep the heat and humidity at proper levels. The uvb part of your concern I cannot comment on, I am using HPS still. Unless you plan on making seeds, you may rather use the other available light for clones of your female? sorry no one responded sooner, good luck.
 

farmthekush

New member
UVB damages cells. UVA is much safer, as per my understanding.


actually i made a bit of research and small dosages 15 m/ hour of light is ok for the plants and even make mass thc production but still havn't tested anything myself.
the uvb acts as the sun and help reach high thc lvls same as in weed grown in high places closer to the sun.

trying to get mydx so i can test thc lvls after harvest so i can tell if it helped in any way to maxmimize the thc lvls.. as i have older harvest GWS grown in HPS without supplment uvb.

anyway if anyone is still looking some new pics (2 days ago):
 

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