Mixing White & Multi Spectrum Chip LEDs to Grow MedMan Silver Skunk BX1

PetFlora

Well-Known Member
Just thought i would mention that during flowering stage runoff pH increases.

I see it rise greater than 1 full point every 24 hours

So each morning i check ppms, adjust as needed, then adjust pH
 

CaliWorthington

Well-Known Member
They are looking good man! The light does seem to be working well.

Once I mix and pH a reservoir, I don't even bother checking it again unless I top it up. Also, I am lazy.

That's for drain-to-waste Coco Perlite mix, just add nutes to RO water and pH to 5.8, very simple.

In a recirculating system I might check it more, but probably not. bongsmilie
 

PetFlora

Well-Known Member
They are looking good man! The light does seem to be working well.

Once I mix and pH a reservoir, I don't even bother checking it again unless I top it up. Also, I am lazy.

That's for drain-to-waste Coco Perlite mix, just add nutes to RO water and pH to 5.8, very simple.

In a recirculating system I might check it more, but probably not. bongsmilie
Thanks.

What did you wind up doing for lights?


Recirculating Rez changes the game

As the ladies build buds they dump serious waste products, which in my case are going right back into a ~ 3g rez.

It would only take 3 days of not readjusting for plants to develop mysterious issues
 

dojoking

Member
Rez change day

Buds sort of easing along the last few days, a sign that nutes are expended, even though ppm is high

SPYDR 600

Reduced to 700ppm

View attachment 3166013 View attachment 3166014 View attachment 3166015 View attachment 3166016

UFO Tent + 1 x 4 WW panel
(Pics 5-6)

Increased to 640

Primary leafs now as big as my hand
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Is the spectrum for your Spydr 600 still the same one you listed a few pages back in this thread? This one http://www.bmlcustom.com/custom-report-details/?partNo=PS3690S101GEAGSEGAGESGAEG ? If so, are you happy with it? Would you change the spectrum in any way?

I have been considering using the Spydr 600 as side lighting along with a Rocket Plasma and I am trying to figure out a good sun like spectrum using mostly white leds (for a more balanced spectrum) but heavier on the orange and red side for flowering. I would like to use it through the vegetative and flowering phase like you are doing. It seems like we would want to imitate the late summer outdoor spectrum for something like this but that is just a guess. I am definitely not an expert on the subject.
 

CaliWorthington

Well-Known Member
Thanks.

What did you wind up doing for lights?


Recirculating Rez changes the game

As the ladies build buds they dump serious waste products, which in my case are going right back into a ~ 3g rez.

It would only take 3 days of not readjusting for plants to develop mysterious issues
Half of the custom COB system will be here soon, I'm pretty excited.

I hear you on the recirculating issues. The House & Garden Aqua Flakes runs really clean, you might try that. In Ebb 'n Flo system I could go 7-10 days between reservoir changes with little to no adjustment without problems. Canna is also good like that.

I was on my way to get the Kushman Vegamatrix nutes earlier, but there was traffic, so maybe another day. I did get those Super SVA nutes that the old school OG Kush growers supposedly use. I was told it's exactly what the original Advanced Nutrients Sensi A/B used to be, and it's cheap.

Sorry did I get off on a nute tangent again? :bigjoint:
 

PetFlora

Well-Known Member
Is the spectrum for your Spydr 600 still the same one you listed a few pages back in this thread? This one http://www.bmlcustom.com/custom-report-details/?partNo=PS3690S101GEAGSEGAGESGAEG ? If so, are you happy with it? Would you change the spectrum in any way?

I have been considering using the Spydr 600 as side lighting along with a Rocket Plasma and I am trying to figure out a good sun like spectrum using mostly white leds (for a more balanced spectrum) but heavier on the orange and red side for flowering. I would like to use it through the vegetative and flowering phase like you are doing. It seems like we would want to imitate the late summer outdoor spectrum for something like this but that is just a guess. I am definitely not an expert on the subject.

It would appear so. Somehow I thought I had mixed ~ 90% 2700 + 3000, which was one of the iterations I toyed with. The 625s was BMLs choice, and a good one. The only reason I thought to mix 2700 & 3000 was I was unclear as to their spectral graphs at the time.

3000 + ~ 10% @ 625 would be very nice for flowering

Keep in mind I chose these spectrums as a veg AND bloom light

If only for flowering, I would go with 80% 3000 + 10% @ 625 + 10% @ 3500-4000 these to make sure there is sufficient blue throughout flowering

In a pinch you could likely veg pretty well with this too
 

dojoking

Member
It would appear so. Somehow I thought I had mixed ~ 90% 2700 + 3000, which was one of the iterations I toyed with. The 625s was BMLs choice, and a good one. The only reason I thought to mix 2700 & 3000 was I was unclear as to their spectral graphs at the time.

3000 + ~ 10% @ 625 would be very nice for flowering

Keep in mind I chose these spectrums as a veg AND bloom light

If only for flowering, I would go with 80% 3000 + 10% @ 625 + 10% @ 3500-4000 these to make sure there is sufficient blue throughout flowering

In a pinch you could likely veg pretty well with this too
I must say that the "Custom LED Strip" website that BML has is pretty sweet, I have been playing around with led combos for almost 2 days now but. I stumbled across this grow comparison today by Greengenes between an Apache Tech AT600 led and a 1000 watt HPS https://www.rollitup.org/t/apache-at600-led-vs-1000w-hps-blue-dream-grow.813412/page-40 where the guy achieved a .96 gram/watt. So I think that I will try and mimic the AT600 spectrum for my Spydr 600 (if I choose to get one) build since there are proven results with the spectrum. ( At600 vs HPS 1000 grow video here
)

The AT600 uses a 3:2 white/red combo in their panel and courtesy of the At600 Growershouse.com's review we have their spectrum here

So I have been trying to match it on the BML website and I came up with this http://www.bmlcustom.com/custom-report-details/?partNo=PS3690S101ASASAASASAASASA What do you think? Close enough? any tweaks?

Sorry if this is considered off topic, I have no intention of derailing your thread. I just thought you might be interested since you seem to know your stuff when it comes to spectrum and are kind of in the testing phase for your own spectrum at the moment.
 
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dojoking

Member
The more I look at your spectrum compared to the at600 the more I like your spectrum but. I suppose anything will work for flowering as long as the more red spectrum is there. This is the problem that to many choices gives us lol.
 

PetFlora

Well-Known Member
GG707 is an excellent grower. I follow him closely. And AT makes excellent products

Keep in mind companies design panels well ahead of the quantum level improvements being made in white leds on a daily basis, or so it seems. So ATs blend choices then will probably not be the same as their next gen

Today, Cree has COBs (several guys here using them in DIYs) that are damn near perfect for mj from seed- harvest- but they are $$$$$$, and point source. I prefer an even light distribution across the canopy

As I mentioned above (but slightly revised here), were I to select diodes today for my SPYDR, I would go with ~ 80% 3000 + 10% @ 625. The other 10%, I would replace the 6500Ks with 5000Ks.

This should make for a complete light for veg-harvest


hth

and please mention me, should you order
 

Rooster99

Well-Known Member
Hey Pet - I was under the impression that the 3000k 3070's were putting out a decent amount of light around the 625-630nm and that supplimenting with additional 660nm was the winning ticket....What do you think?
 

PetFlora

Well-Known Member
Hey Pet - I was under the impression that the 3000k 3070's were putting out a decent amount of light around the 625-630nm and that supplementing with additional 660nm was the winning ticket....What do you think?

if you scroll through this thread you should find a c/p of 411 I came across over a year ago (or is it 2?) that spells out why > 650 is not needed in any quantity.

I have seen this using both 660 leds and 660 HOT5s

What 660 will do is cause stretch


If your plants are small, this may be helpful
 

dojoking

Member
GG707 is an excellent grower. I follow him closely. And AT makes excellent products

Keep in mind companies design panels well ahead of the quantum level improvements being made in white leds on a daily basis, or so it seems. So ATs blend choices then will probably not be the same as their next gen

Today, Cree has COBs (several guys here using them in DIYs) that are damn near perfect for mj from seed- harvest- but they are $$$$$$, and point source. I prefer an even light distribution across the canopy

As I mentioned above (but slightly revised here), were I to select diodes today for my SPYDR, I would go with ~ 80% 3000 + 10% @ 625. The other 10%, I would replace the 6500Ks with 5000Ks.

This should make for a complete light for veg-harvest


hth

and please mention me, should you order
The mix you suggested of 3000k, 5000k, & 625 looks good. A CRI of 95 and more similar to the sun than the spectrum I posted in my last post. The micromoles are a little lower than the last spectrum but. I would rather have it more like the sun than anything I think. Copying nature would seem to be the smartest move when it comes to this stuff imo. I split them up more like 3000k @ 60%, 5000k @ 20%, & 625 @ 20% though http://www.bmlcustom.com/custom-report-details/?partNo=PS3690S101GGCSGGGCSGGGCSG . I think this spectrum would work well for me since I would have the plasma for veg and come flower time I can cut the Spydr on to light up the sides for flowering.


I will definitely mention you if I place an order.
 
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PetFlora

Well-Known Member
Keep in mind that when harvesting by the sun cycle during fall, that the sun is both farther away and redder than during veg

FYI, did a rez change yesterday in the ufo tent, and this morning in the 600.

Back up to ~ 800, just to see if buds swell more

For sure they are filling in, and getting sticker by the day

Most trics I've ever had. SS is known for this

At least some of this I think can be attributed to the SPYDR

UFO Tent

Attempting to harvest some pollen for a couple branches on the female

I am using the clear 4 liter dome over the male to keep pollen in check
 
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