BlackStar 100 watt LED Grow Light UV

Do I add calmag every water feeding with my current bloom nutes or do I only add calmag during certain times for led?

Note that calmag is also 2-0-0 NPK, so you don't want to overdo it with the nitrogen.

Xoshua said:

Do I add calmag every water feeding with my current bloom nutes or do I only add calmag during certain times for led?

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Follow the directions on the bottle first.
I find that for my set-up, I get the best results with 1 heavy dosing of CalMg a week.
I've tried spacing out multiple smaller doses during the week, but the results are not as good.
Good luck with your grow.

So how is the 240 going for you, you think it would be enough for a 32x32 x 64 tent, im thinking about getting a flower tent straight led I can only do a 32x32 x64 what's my best bet in led

DO3SHA said:

So how is the 240 going for you, you think it would be enough for a 32x32 x 64 tent, im thinking about getting a flower tent straight led I can only do a 32x32 x64 what's my best bet in led

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Come check my thread out and see. Check my started thread for Xoshua's 2.0 LED BLackstar 240

I hope everyone is aware that companies advertising UV is simply a marketing ploy, some led companies even advertise UVB what ppl need to know is that UVA has no benefit on thc production and any other benefits could be greater achevied with violet light over 400nm. UVB is the light that is a benefit THC but UVB leds do not exist in anything thing more the half a mW thousands of these would be needed with still no penetration. the only leds that come close to UVB is the solar storm which uses a 10% uvb reptile or tanning bulb (flourescent) if people want to see the true benefits of UVB they need to go with the narrowband UVB photo therapy lights( dangerous to eyes) these bulbs are fairly exspensive and a fixture would have to be custom built for the bulbs unless you use the extremely exspensive ones for phototherapy overall they're around 50-70 % uvb most the other wavelegnths can be used by the plants

how about a supplement CFL with UVB ?

you know one of them reptile bulb`s you can buy at pet shop`s



maybe run it on a different timer so it only turn on for a few hours a day doing flowering

just sumthing I have been thinking about, but have`t really done much research on the subject yet, maybe others have experiences ?