Re: [APD] low light

[urville <urville at peoplepc_com>]

Tom,
Thats it though, I have my co2 on one tank at 38 and 60 on the other. I 
dose EI, and i'm sure i've got sufficient levels. So light is my 
limiting factor at 3.5 WPG and 4 WPG, thats why I'm so interested. I 
want to see where the limit is. with dosing, co2, and light how fast 
exactly can i grow these little plants?
ian

Thomas Barr wrote:

>Actually low growing, and slow growing Gloss at 1.5 w/gal on NO FL's.
>Jeff Kropp also grew it at this level, I saw the plants in person at his home.
> 
>I think if folks do use low light, use lots of CO2, good water changes, pruning, nutrients etc just like you do for the high light tanks.
> 
>While MANY folks you do not need CO2 at the lower end of light intensity, it helps a GREAT deal, much like the high light tanks.
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>But unlike the high light tanks, this allows less algae issues and more flexibilty(or neglect) of dosing routines as well.
> 
>Like high light tanks, adding CO2 fully __maximizes your light use efficiency also.
> 
>So all those folks counting watts, lumens, little physicists, might want to focus on good CO2/nutrients routines learned at high light, and applying them to low/er light.
>This is what I did to come up with EI, I used lots of light, then went back and tried it on low light.
> 
>Light is then dependent variable since I ruled out CO2 and the nutrients. So you can change this by distance, bulb type, intensity, measure with all sorts of meters, etc.
> 
>You do not need a PAR measurement really to get consistency and recommend lights etc.
>Experience with the lights when the other issues are non limiting is pretty useful even if you have no clue as to what an Einstein might be.
> 
>I think all the effort put into the light issue should be placed into the CO2 issue. That will help many many more folks be successful at plants.
> 
>Regards, 
>Tom Barr
> 
>www.BarrReport.com
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>>Scott,
>>Tom Barr claims he's grown it in 2wpg NO, but my attempts at this has thrown
>>me in your camp:-( To be fair, tho, I had stem plants I had to cut back 
>>to expose
>>the glosso to what light there was....got to be a PITA.
>>    
>>
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>
>>Bill
>>    
>>
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>
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