Home | Community | Message Board

Cannabis Seeds UK
This site includes paid links. Please support our sponsors.


Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Shop: Mushroom-Hut Grow Bags   Original Sensible Seeds Autoflowering Cannabis Seeds   Bridgetown Botanicals Bridgetown Botanicals   Unfolding Nature Unfolding Nature: Being in the Implicate Order   Kraken Kratom Red Vein Kratom   PhytoExtractum Maeng Da Thai Kratom Leaf Powder   North Spore Cultivation Supplies

Jump to first unread post Pages: 1 | 2 | Next >  [ show all ]
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
OfflineMrdbrewer
Mr
Male


Registered: 06/17/13
Posts: 3,974
Loc: Galafrey.
Last seen: 4 years, 20 days
grow light for cactus to summer over winter
    #18836563 - 09/13/13 11:32 AM (10 years, 4 months ago)

I want my cacti to think its summer all year around and well whats the best light i can use maybe like a 1" florescent light in a grow box?


--------------------
Constantly checking my dick and nips to see if im not dying


Extras: Filter Print Post Top
InvisibleTangich

Folding@home Statistics
Registered: 10/28/09
Posts: 8,723
Re: grow light for cactus to summer over winter [Re: Mrdbrewer]
    #18836649 - 09/13/13 11:56 AM (10 years, 4 months ago)

Depends for what. If you're going to put Pereskiopsis/grafts or young seedlings under it, they could be ok. For most other species, no light is really sufficient and forcing them to avoid dormancy period will be detrimental. You'll have some sickly, badly etiolated, light green plants if you put them under a floro.


Extras: Filter Print Post Top
Invisiblepsi
TOAST N' JAM
Male User Gallery

Registered: 09/05/99
Posts: 31,456
Loc: 613 Flag
Re: grow light for cactus to summer over winter [Re: Mrdbrewer]
    #18836788 - 09/13/13 12:23 PM (10 years, 4 months ago)

Yeah the 1" diameter tubes are T8s, fairly efficient for fluorescents but the light intensity is not enough for Trichocereus beyond the seedling stage. Peyote does pretty well under them I've found, at least for the first couple years.


Extras: Filter Print Post Top
Invisiblethe mad machinest
Medicine Man
Male User Gallery


Registered: 04/18/13
Posts: 4,249
Loc: parallel universe #420
Re: grow light for cactus to summer over winter [Re: psi]
    #18836817 - 09/13/13 12:32 PM (10 years, 4 months ago)

so which would be better?  75w 6500k cfl ya know the twisty bulbs, or a 1"x12" t8 flourescent bulb?
for sprouting/seedling stages and about 20-30 of them under 1 of said lights..


--------------------
:hummer:

:trees::trees:

:aweyeah::trippinbawelz::awecid:
.         



         
             
             
                                              :redneck::tentjump:                         :hole:


Extras: Filter Print Post Top
Invisiblepsi
TOAST N' JAM
Male User Gallery

Registered: 09/05/99
Posts: 31,456
Loc: 613 Flag
Re: grow light for cactus to summer over winter [Re: the mad machinest]
    #18836931 - 09/13/13 01:06 PM (10 years, 4 months ago)

Lumens are usually the most straightforward way to compare light sources because a lot of manufacturers put them on the packages. Do you mean 75 actual watts of CFL, or a "75 watt equivalent" bulb? From what I'm seeing online, a 75 watt equivalent pulls 18 W and puts out about 1250 lumens. I'm having a harder time finding lumen output for 12" T8s online, but if they were 1/4 the values for 48" tubes they would be about 700 lumens at 8 W. That's probably not exactly right, but I think it's safe to say the CFL puts out more light than one 12" T8 tube.


CFLs work pretty well in a desk lamp type fixture for lighting a small area. Even if all 30 seeds sprout, they will take up very little space for quite a while. 25 seedlings in a 3" square pot will do fine for at least a year IME.


Extras: Filter Print Post Top
Invisiblethe mad machinest
Medicine Man
Male User Gallery


Registered: 04/18/13
Posts: 4,249
Loc: parallel universe #420
Re: grow light for cactus to summer over winter [Re: psi]
    #18836968 - 09/13/13 01:20 PM (10 years, 4 months ago)

I mean 75 watts of CFL, I'm going to use the cfl, from what I've researched and from what youre sayin it sounds like thts the way for me to go being that I already heave the bulbs too:lol:

wow that many in a 3" pot huh?  I'm so used to plants taking up space quick I put like 8 seeds in a 6" pot , 3 in a 4" pot, 3 In a 3" pot, and 3 in each of 2 more 2" pots. all round pots.

I've still got like 30 seeds left, I guess I should sow those all in one 3-4" pot?


--------------------
:hummer:

:trees::trees:

:aweyeah::trippinbawelz::awecid:
.         



         
             
             
                                              :redneck::tentjump:                         :hole:


Extras: Filter Print Post Top
Invisiblepsi
TOAST N' JAM
Male User Gallery

Registered: 09/05/99
Posts: 31,456
Loc: 613 Flag
Re: grow light for cactus to summer over winter [Re: the mad machinest]
    #18836999 - 09/13/13 01:31 PM (10 years, 4 months ago)

Yeah they seem to even like being a little overcrowded, they will happily grow until they're right up against each other and can even crack the container open.


Extras: Filter Print Post Top
Invisiblethe mad machinest
Medicine Man
Male User Gallery


Registered: 04/18/13
Posts: 4,249
Loc: parallel universe #420
Re: grow light for cactus to summer over winter [Re: psi]
    #18837041 - 09/13/13 01:43 PM (10 years, 4 months ago)

sorry OP, gonna pick psi's brain and hijack yo thread fer a few posts, plz forgive:peace::sun:

so down the road when they are pushing on each other and eventually ready to transplant does root tangling not become a problem? how would one go about seperating them to transplant w/o damaging the cacti?


--------------------
:hummer:

:trees::trees:

:aweyeah::trippinbawelz::awecid:
.         



         
             
             
                                              :redneck::tentjump:                         :hole:


Extras: Filter Print Post Top
Invisiblepsi
TOAST N' JAM
Male User Gallery

Registered: 09/05/99
Posts: 31,456
Loc: 613 Flag
Re: grow light for cactus to summer over winter [Re: the mad machinest]
    #18837087 - 09/13/13 01:59 PM (10 years, 4 months ago)

The roots do get a little tangled but it's not too bad usually since they mostly grow downward, it's a lot worse with Trich seedlings because their roots grow outwards a lot more. Any time you transplant there is going to be some root damage but it generally doesn't seem to be a big deal. You just sort of ease them apart as gently as possible. It can take a little effort to get the whole root mass out of the pot in the first place, with square plastic pots I turn them upside down and squeeze the corners.


Extras: Filter Print Post Top
Invisiblethe mad machinest
Medicine Man
Male User Gallery


Registered: 04/18/13
Posts: 4,249
Loc: parallel universe #420
Re: grow light for cactus to summer over winter [Re: psi]
    #18837115 - 09/13/13 02:07 PM (10 years, 4 months ago)

ok well that clears that up:thumbup: you're just full of good information man!
:highfive1:


--------------------
:hummer:

:trees::trees:

:aweyeah::trippinbawelz::awecid:
.         



         
             
             
                                              :redneck::tentjump:                         :hole:


Extras: Filter Print Post Top
Offlineintelligentlife
Noaidi
 User Gallery


Registered: 10/18/10
Posts: 2,627
Loc: EU
Last seen: 7 years, 4 months
Re: grow light for cactus to summer over winter [Re: the mad machinest]
    #18840153 - 09/14/13 06:02 AM (10 years, 4 months ago)

IF you want to really cactus think it's summer year around.. You need to invest ~200-500$(depends what you want) to equipment of lights and cooling... (I suggest buying equipment from different auction sites or somewhere to get them cheaper)

You need strong sun imitating light. Cost of it is ~100-200$ High Pressure Sodium from 250Watt to 2kW (depends on your collection) ...peyote will do nice with fluoros but doesn't get heat from them what is good to peyote to grow. Also giving dormancy to peyote keep cactus more healthy..

Also you need cooling system, cause only 400Watt HPS bulb with power source generate so much heat that small room will warm up easily to over +30C

Then all kind of things, like room for them etc.. Same equipment than cannabis growing.. That's very good. Also light spectrum has to be near white so I suggest to use two light bulbs.. High pressure sodium and Metal Halide, so you can get reddish-yellow and whitish-blue light spectrum to cacti what is the best.

If you still trying to go on with fluoros, you need keep fluoros as close as 1-2cm from top of trichocereus..

Keeping dormant with fluoros to peyote is ok, they doesn't heat up much an keep peyote in dormancy without rising heat and let cactus think it's summer but there is lack of light.

Fluoros are not good, trust me.. I live at zone where are no sun for total 2months and then only small fraction of the day sun is visible but otherwise winter is total dark. I have tried every light system available.

HPS and MH are hard to put together and you need power source to light bulb, light cannot be connected to electricity plug.

Fluoro's are okay to seedlings, small young cactus and some cactus living in shady places.. Later they are bad and just not effective enough.. It is just a fact that if you want to cactus think it's summer all year round.. fluoro bulbs ain't good for that. They are good for dormancy lighting when temperatures are cold and these light doesn't generate so much heat.. Also for seedling lights fluoros are good.

In a nutshell: build lighting and cooling system siimlar to cannabis growing and get two light bulbs, HPS and MH to get light spectrum good.. Then use that area to your cacti... These lights are closes to sun with relatively cheap price. If you want to grow adult cactus with fluoros and let cactus think it's summer time, you are just etiolating your columnars. Peyote will do under fluoros if you get heat somewhere, trichocereus need seriously strong light.

One point about lights.. Do not look "lumen" amount from light ..look how much "lux" per wattage light generate.. lumen is only visible light, lux are all light what plants use too but humans can't see on bare eye. More powerful light, more lux per wattage high pressure sodium or metal halide bulbs generate and best of all is 600Watt power light bulb, these has best benefit comparing lux/wattage.

You really need to build strong desert with strong lights to get cactus think it's summer.. Fluoro just suck with columnars, they have some benefit but not as good as HPS/MH.

I use at the moment south windowsill + 150Watt Metal Halide bulb above trichocereus. I have tested fluoro, they are not the best tek of lights using to young or adult trichoereus.. they are best for seedlings cause they are so weak. Find out what kind light tek and cooling system cannabis growers use, san pedro loves same conditions and growth are best.

Professionals use also Metal Halide or High Pressure Sodium light bulbs as plant light cause they are best, especially for cactus of crop plant when needed good harvest. If you still want to use fluoros, your trichocereus will etiolate and diameter can be as small as 1-2cm.


--------------------


Extras: Filter Print Post Top
Offlinesolstice
Hempowered
Male User Gallery

Registered: 02/14/09
Posts: 2,003
Loc: Silly Cunt Valley
Last seen: 9 years, 10 months
Re: grow light for cactus to summer over winter [Re: intelligentlife]
    #18840172 - 09/14/13 06:21 AM (10 years, 4 months ago)

intelligentlife... all I've got to say is: great info. You're a king. I've just set up my HPS grow light at my new place ( well, it's been a year... ) and got some cacti ( peruvianus and peyote ) so your post really hit the spot. :cheers:


--------------------
Man woke up in a world he did not understand and that is why he tries to interpret it - Carl Jung


Extras: Filter Print Post Top
Invisiblepsi
TOAST N' JAM
Male User Gallery

Registered: 09/05/99
Posts: 31,456
Loc: 613 Flag
Re: grow light for cactus to summer over winter [Re: intelligentlife]
    #18840279 - 09/14/13 07:50 AM (10 years, 4 months ago)

Quote:

intelligentlife said:
One point about lights.. Do not look "lumen" amount from light ..look how much "lux" per wattage light generate.. lumen is only visible light, lux are all light what plants use too but humans can't see on bare eye. More powerful light, more lux per wattage high pressure sodium or metal halide bulbs generate and best of all is 600Watt power light bulb, these has best benefit comparing lux/wattage.




Yeah lumens are weighted towards frequencies that appear brighter to human eyes (e.g. green appears disproportionately bright to us and is basically useless to plants.) They give only a rough idea when comparing lights with dissimilar color profiles, but if you're comparing two different 6500K fluorescents it should be fairly accurate to compare the lumens. Often they are the only stat available on a certain light though. PAR is another measurement weighted to what light is useful to plants, but few manufacturers quote it.


Extras: Filter Print Post Top
Offlineintelligentlife
Noaidi
 User Gallery


Registered: 10/18/10
Posts: 2,627
Loc: EU
Last seen: 7 years, 4 months
Re: grow light for cactus to summer over winter [Re: psi]
    #18841103 - 09/14/13 01:21 PM (10 years, 4 months ago)

I remember still the times when I first start to grow cacti. I wondered why my cactus grow bad under fluoros (seed grown trichos)

Then I moved them to window sill and they starting to get more like a cactus should be.. Later on I have tried again fluoros but with bad results, etiolation and these bulbs needs to really be 1-2cm away from top of cactus to be "enough"

HPS and MH are hard to explain but penetration of light are very effective.. both of them together like I have used 400Watt HPS and 150Watt MH, at mid winter it feels like sun, some warmth, whitish color spectrum and cactus growth was very effective.

550Watt of lights still was too much to peyote, I have to use some shade for them or keep peyote plants far away from bulbs, instead of trichos and few columnars, they just love these lights..

For short words if looking best lighting indoors for trichocereus, then you have to see cannabis growing forums and learn lighting teks from there.. Their purpose is to get as much MJ as possible and only light amount is critical factor how much MJ plant can grow.. Seedlings and peyote can suffer from strong HPS or MH or they need to be two meters away from light source. I kept chili plants to give shade for peyote, like in nature they grow under another plants go get shade.

Very easy and short answer is to build cannabis growing room with both light spectrum, Metal Halide and High Pressure Sodium.. Then light is actually perfect for san pedro. There are sold some light bulbs generating both spectrum of light, blue and reddish yellow.. Still trough my experience I suggest to get one MH and one HPS to make perfect cactus grow room. Different light spectrum effects appearance of cactus HPS spectrum(reddish-yellow) makes cactus grow more column.. instead of MH(whitish-blue) makes cactus grow more flat.

I noticed that after I put extra light to my windowsill. It's 150W MH, blue spectrum with sun from window.. Before MH light peyote plants appearance was more round, now they are very flat and has turned to flat and wide after I have add more bluish color to light.

In greenhouse peyote grows more round shape than flat one and loph from greenhouse to windowsill where is extra bluish color tone light, they start to get form of flat growth again. Also I have read about artificial light spectrum and their effects on growth of cactus so IMO MH+HPS are best choice for cactus. HPS only is best for cannabis growing.. HPS still do very good with cacti but giving more natural appearance to cacti, extra bluish color tone would be "perfect" but not necessary.


--------------------


Extras: Filter Print Post Top
Invisiblepsi
TOAST N' JAM
Male User Gallery

Registered: 09/05/99
Posts: 31,456
Loc: 613 Flag
Re: grow light for cactus to summer over winter [Re: intelligentlife]
    #18841181 - 09/14/13 01:53 PM (10 years, 4 months ago)

Quote:

intelligentlife said:
I remember still the times when I first start to grow cacti. I wondered why my cactus grow bad under fluoros (seed grown trichos)

Then I moved them to window sill and they starting to get more like a cactus should be.. Later on I have tried again fluoros but with bad results, etiolation and these bulbs needs to really be 1-2cm away from top of cactus to be "enough"




Yes Trichocereus will go skinny from quite early on under fluoros. With peyote you can get away with them for much longer though, especially with some sunlight from a window.


Extras: Filter Print Post Top
Offlineintelligentlife
Noaidi
 User Gallery


Registered: 10/18/10
Posts: 2,627
Loc: EU
Last seen: 7 years, 4 months
Re: grow light for cactus to summer over winter [Re: Mrdbrewer]
    #18985908 - 10/16/13 12:27 PM (10 years, 3 months ago)

I post kinda late to this topic but don't want to get new topic about and I have now pictures.

About the growing lights, I have build total of 400 Wattage Metal Halide and High Pressure Sodium light combination for cactus what I grow over winter.

I find out cause cactus grows good with both light spectrum instead of one light bulb I build two light reflectors opposite, used 150 Watt MH (blue-white) and 250 Watt HPS (red-yellow)

To prevent them not burning tirchocereus growth tips I have take regular 120mm computer fan and transform computer power source to use for fan. I use it at 5 Volts. I can choose 5 Volt cable(red) or 12 Volt (yellow) from regular computer power source. Black one is ground cable.

At the moment this is need kinda space cause both light bulb and fan need own plug to use but they can be connected to same timer. I forget 400Watt bulb cause I cannot get full spectrum of light and these two form actually kinda "pure white" light with little bit more yellow color but this way light are very effective to cactus, full spectrum.

Picture are lights closed:


Then picture taken at light on so you can see difference between MH and HPS bulb color. There two forms pretty good "day light" for cactus.. Also light is very intensive and effective what gives trichocereus and many other species as much light as they need.


I had already that 150Watt MH bulb so I buy'd 250Watt to get full 400watt instead of use my 400Watt HPS cause it lacks bluish light spectrum and it needs to be more far away from cactus than two smaller bulbs with fan blow hot air off.

Fan is not need to use if there is air circulation at growing place but cause there light bulbs generate lots of heat also I decided to use 5 Volt fat to move some hot air. I just got assembled this piece together to create full 400Watt two bulb light for cactus.

Sorry this post comes late but wanted to post what is really proper indoor cactus light what are almost as close to day light spectrum as possible.. I have tested both separated for cactus but find out best growth comes from full spectrum light.

These light will consume electricity so if you want to grow proper fat columnar trichocereus indoors, you have to prepare to use very strong light bulbs to preven etiolated growth, also I suggest strongly to use all spectrum what can be get. I noticed that without bluish coloration in light spectrum, only HPS bulbs cause trichocereus to grow slim.. I don't know the effect why but only HPS bulb cause slim growth instead of blue growth cause stunted fat growth, these are both together very good, easy to build and so on.

I used aluminium tape to attach two reflectors together to get light bulbs attached from both side. Simple way and cause these pieces don't have much of weight they will stay attached with aluminium tape cause it tolerance heat.

Sorry to pop old thread up but wanted to show good growing light for cactus indoors. This can be used over winter for trichos if wanted, or full year indoor growing. I have tested these lights lots, only way to get trichocereus growth like sun goes are combination of two lights..

Hope someone can use photos to get idea what I have meant to use for good cactus light indoors, I am sure there is no etiolation problems with these lights if combined wattage amount goes to 400-1000Wattage.. There is no maximum limit to wattage amount, more Watt better growth there are in with cactus. Fans are good to cause air flow to prevent these lights to burn plants.

These are same bulbs used to cannabis growing. Blue for vegetative growth and red-yellow for flowering stage, I find cactus like both to get best appearance with artificial lights. If sun is not available, this is best choice after sun light.


--------------------


Extras: Filter Print Post Top
Invisibleanne halonium
jaguarette
Female

Registered: 05/07/13
Posts: 1,908
Re: grow light for cactus to summer over winter [Re: intelligentlife]
    #18990208 - 10/17/13 10:10 AM (10 years, 3 months ago)

i recommend LED .
bluer the better.
35-50W ft.

we grow yr round, non stop.
and only hibernate them if the lab is in rebuild mode.



we are 100% LED now.
i gave up on flouros, the ratio of power to heat is too high.


--------------------
:aliendance:


Extras: Filter Print Post Top
InvisiblecArcace-x
YeAh!!
 User Gallery

Registered: 10/17/13
Posts: 2,412
Loc: The Simulator
Re: grow light for cactus to summer over winter [Re: anne halonium]
    #18991872 - 10/17/13 05:00 PM (10 years, 3 months ago)

Thank you Intelligentlife for sharing these information!
I and my girlfriend are growing some 'agrume' and other thing under 2x 400 hps and fluoros, and i'm about to sow some peruvian torch and san pedro, do you think that those 250w cfl can replace the MH light for a full spectrum for my cactus when they'll get older?

hmm anne halonium, how many 'lux' can you get from these 50w LED???


--------------------



Extras: Filter Print Post Top
Invisibleanne halonium
jaguarette
Female

Registered: 05/07/13
Posts: 1,908
Re: grow light for cactus to summer over winter [Re: cArcace-x]
    #18992039 - 10/17/13 05:44 PM (10 years, 3 months ago)

alot of lights work,
but each has its issues and dynamics.

light set above, lophship one,
is 2 x 23W LED 5k spots 1400 lumens each,
center blue, is LLE/ LED 10x 5 W 450 nm blue (50W)

so its somewhere around 7k @ 6k+ lumens @ 98W total.
temp in the box runs about 88-90 day.
78-80 night.

lights are about 1 foot above a 1x2 foot area.

we use safety glasses with this box.

we are 100% LED now.
last rack of T8's left the building last week.

* some notes.
i see no point in growing trichs indoors.
i dont see the power equip/ result level , being worth it.

lophs and micro exotics, and grafts , can absolutely be grown indoors year round, with practical space, and power consumption / time.

light for cacti, is a complex thing indeed.


--------------------
:aliendance:


Edited by anne halonium (10/17/13 05:58 PM)


Extras: Filter Print Post Top
InvisiblecArcace-x
YeAh!!
 User Gallery


Registered: 10/17/13
Posts: 2,412
Loc: The Simulator
Re: grow light for cactus to summer over winter [Re: anne halonium]
    #18992643 - 10/17/13 07:40 PM (10 years, 3 months ago)

my basement is already equiped with HPS lights for the winter because my girlfriend is a kind of plants freak and we grow exotic plants, foods and now entheogenes, preparing for the next summer, my cactus will be in a solarium where other exotic plants thrive!


--------------------



Extras: Filter Print Post Top
Jump to top Pages: 1 | 2 | Next >  [ show all ]

Shop: Mushroom-Hut Grow Bags   Original Sensible Seeds Autoflowering Cannabis Seeds   Bridgetown Botanicals Bridgetown Botanicals   Unfolding Nature Unfolding Nature: Being in the Implicate Order   Kraken Kratom Red Vein Kratom   PhytoExtractum Maeng Da Thai Kratom Leaf Powder   North Spore Cultivation Supplies


Similar ThreadsPosterViewsRepliesLast post
* PW420's Marijuana Grow Log
( 1 2 all )
StrandedVoyager 4,754 25 09/06/06 05:20 PM
by Cloud9
* 400w in 1000w mh? rubixcubies 854 2 10/29/06 02:22 PM
by CaptainKirk
* Winter Plants HagbardCeline 928 7 10/31/03 10:26 PM
by Shamanorrhea
* 400w HPS vs 1000w HPS TODAY 3,626 17 10/11/07 05:31 PM
by YidakiMan
* 600w Ballast + Box + air cooled octagonal reflector from scratch
( 1 2 all )
Eightball 7,817 38 02/27/05 01:43 AM
by lackobreath
* Cheapest 600w hps? Eightball 1,495 5 10/28/04 04:09 PM
by Gr0wer
* How much difference in heat output between 150w/250w HPS? *DELETED* metasin 1,728 1 10/26/04 07:17 PM
by Gr0wer
* Cheap Ebay 400w HPS lights? TODAY 1,529 9 09/07/06 11:26 AM
by TODAY

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Mostly_Harmless, A.k.a
7,583 topic views. 2 members, 7 guests and 5 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2024 Mind Media. Some rights reserved.

Generated in 0.034 seconds spending 0.008 seconds on 16 queries.