RE: [AGA Member] compact inter-node growth please...

[Livay Aviel-R51374 <Aviel.Livay@motorola.com>]

Back to 'technical' Ladies/Gentlemen???

I thought Daylight is a cheap blue and Warm White is a cheap red.
I use the OSRAM Lumilux and according to Ivo Busko article on AB http://www.aquabotanic.com/lightcompare.htm the daylight Dlx has a preety good 'blue PUR' (11.9) and the warm while dlx has a good 'red PUR' (11.6) comparing to bulbs on the same Watts category.

Now if I have to move on to 10K - fine 10K - but I thought these Fluorescents are more for reefs and could trigger algae. Also could one such 10K "inhibibt" the growth or should I replace ~50% of my FLs?

Thanks,

Aviel.

-----Original Message-----
From: owner-aga-member@thekrib.com [mailto:owner-aga-member@thekrib.com] On Behalf Of david
Sent: Thursday, March 25, 2004 6:26 PM
To: aga-member@thekrib.com
Subject: Re: [AGA Member] compact inter-node growth please...

Blue light inhibits plant growth whereas red and far
red light is used for photosynthesis. Blue light will
make your plants more compact but a good mixture of
the two is more beneficial. Do daylight bulbs have a
lot of blue? I was always under the impression that
these bulbs have a yellow tint and produce more red.
Aren't these bulbs at 5000-6700K? You might try mixing
the daylights or coolwhites with some 10000k bulbs
from the aquarium store. These bulbs have lots of
blue. 

David

--- Amit Brucker <amitb@gtek.co.il> wrote:
> Yes stem plants love bright light!!! I would even go
> for 3-4 wpg, You can
> ventilate your light tubes.
> Blue spectrum might encourage algae growth.
> Trimming can help  - but I would increase the light
> levels including RED
> spectrum.
> 
> Amit
> ----- Original Message ----- 
> From: "Livay Aviel-R51374"
> <Aviel.Livay@motorola.com>
> To: <aga-member@thekrib.com>
> Sent: Thursday, March 25, 2004 3:11 PM
> Subject: [AGA Member] compact inter-node growth
> please...
> 
> 
> > Hi,
> >
> > My stem plants seem to grow with bigger than
> desired inter-node gaps.
> While this is acceptable for cabomba or Macrandra I
> do not enjoy the look of
> Ceratophyllum demersum and Myriophyllum tuberculatum
> to say the least.
> >
> > Do I need to go beyond 2.5 wpg for my 200 gallon
> tank? - I hate to do that
> because of heat.
> >
> > I know blue spectrum should help things get bushy
> - I currently mix 50%
> daylight (for the blue) with 50% warm white (for the
> red) - should I get rid
> of my warm whites? Is it OK to go for straight
> daylight all
> across-the-board?
> >
> > Is there any thing I could change in my
> fertilization? CO2? Trimming?...
> >
> > Thanks,
> >
> > Aviel.
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