Hi,
I was looking up some info about lighting in aquaria, the grow of
plants and the formation of algae.
In this search I came across an interresting, and for me new, fact.
In short it says :
"Algae use the blue side of the spectrum while plants can also grow
healthy on the red side only"
So excluding the blue side can / should reduce the growth of algae !!
This was stunning to me because special lamps for plants have both
blue AND red spectra in them.
I use the following picture for further explanation :
http://users.pandora.be/worldofbudgerigars/!spectrum1.jpg
legend :
A) TL - warm white (normal TL)
E) TL - GroLux (special lamp for plants)
I) daylight (sun)
J) spectrum used by plants for fotosynthese
What do we see ?
J is the spectrum which plants should need, so they made the lamp E
(almost identical spectrum)
But now I read that algae use mostly / only the blue side while plants
don't really need the blue side and can live with the red side alone.
So this means that a normal TL (A) should be a far better choice.
Now I can understand why sunlight (J) is so bad to our aquarium in
regard to algae growth (see how much blue there is in sunlight !)
now MY QUESTION :
Is there any scientific source (link / book) which deals with the
fact the algae use basically blue and plants need only red ?
I don't believe everything I read ;-)
TIA
PérRµ§h
--
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet?