Interesting lighting article

[Orion76]

For those of you who haven't checked out Advanced Aquarist this month, there is a very interesting article about the role of lighting and food in the coloration of SPS:

http://www.advancedaquarist.com/2005/12/aafeature2

[ReefRockerLive]

I just finished reading it. Great Article with lots of great info!

[mesocosm]

Greetings All !

... there is a very interesting article about the role of lighting and food in the coloration of SPS:

http://www.advancedaquarist.com/2005/12/aafeature2

Indeed.

"... but are at least pleading for the existence of more complex mechanisms."

Extracted From:
http://www.advancedaquarist.com/2005/12/aafeature2

I'm not so sure that inter-dependency between anthozoan photosynthesis and "feeding" mechanisms is going to turn out to be all that "complex" ... it's just currently undefined.


MicroEinsteins, "fertilizers", and "feeding" ... oh my ... ...



JMO

[Orion76]

I enjoyed the authors reasoning:

Greater than normal concentrations of dissolved nutrients could very well be an explanation for the brown coloration of our corals. These nutrients are indeed excellent "fertilizers" and could help the multiplication of zooxanthellae and therefore induce the masking of the coral pigments. In that case, we are stuck, and there are only a few options:

• do not feed the corals, and take the risk that they will turn brown because of the decrease of their energy resources
  
  
• feed the corals, and take the risk that they will turn brown because of a DOM increase

I can't wait for part 2 of this article

[G.Alexander]

From this it looks like nourishing the corals with food that does not contain DOM is the real deal in colouration

Interesting article, thanks for pointing it out.

G.Alexander

[skippyreef]

Just finished it. Thanks for lionking this one. It made good sense to me. I love articles that take you down the road to reason easily

It is inteeresting that so much emphasis is places on lighting and bulbs. When the truth is back a few year ago the bulb of choice was the 6500K for reasons of PAR. I like the fact that they point out that the PAR being super high is only useful if the corals are using what is avaialble. SO indeed a lower PAR bulb like a 10K-14K20K is in actuality ok so long as it is providing enough PAR to satisfy what the corals will use.

Food in the Aquarium in the form of DOM is not a new concept but the way teh author writes about it is a new twist from what I have read.

I cant wait to read more about coral pigments.

The bast part of this is the method we are using actually is developed around providing a means to eliminate the extra orgaincs in the tank while providing a source of rood for our corals. Their is focus on coral pigments as well....Hmmmmmmm.......

[mesocosm]

Greetings All !

... It is interesting that so much emphasis is places on lighting and bulbs. ...

Point taken ... agreed. But it's hardly surprising, given: (1) The mistaken assertion that photosynthesis is the only meaningful "food generating" process required/utilized by hermaphytic corals; and (2) The "nature" & behavior of manufacturers, distributors ... and consumers ... in the marine ornamental industry.

I like the fact that they point out that the PAR being super high is only useful if the corals are using what is avaialble. SO indeed a lower PAR bulb like a 10K-14K20K is in actuality ok so long as it is providing enough PAR to satisfy what the corals will use. ... I cant wait to read more about coral pigments. ...

Indeed.

Things will get interesting when the PUR correlations (spectral wavelength vs. specific photosynthetic pigments) start to emerge in the literature. Things will get really interesting if the PUR correlations and LED lighting systems can get together ... hmmm ... specific wave band, low-cost LEDs targeted on individual coral specimens based upon the known/specified photosynthetic pigments of the specimen ... hmmm.

... The bast part of this is the method we are using actually is developed around providing a means to eliminate the extra orgaincs in the tank while providing a source of food for our corals.

Hehe ... what is it Bob says? "There might be something to this ZEOvit" ... hehe ...




JMO

[Aged Salt]

Yes, indeed, Gary, the ZEOvit method covers our corals coloration requirements very well Thnx. Timon for the article refernce, as I also am looking forward to the next installment, Bob

[nyfireman3097]

So Im dont get everything in the article (scientific stuff) but is it basically saying that say 4 hours of 10k's would give you the same as 6 hours of 20k ??? I ask since there are PAR diffrences in the temputures and from what I have read in other articles SPS only absorb the lights PAR for a certain amount of time before its saturated