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bugzme 
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 Topic: coral color
Posted: December 19 2004 at 5:56pm |
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Other than type what makes corals the color they are? type, lighting, water quality and what else?
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Jeff
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I KNOW ROCKS THAT ARE YOUNGER THEN ME!! I AM A Realist! I write what I think!!
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Adam Blundell
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Posted: December 19 2004 at 6:43pm |
Jake and I discuss this all the time. Enough to drive everyone else crazy at dinner each month. I could go on for hours on each item, but will probably try to stay out of this topic.
My list- UV, Visible Light Spectrum, Phosphate, Available Zooxanthellae, Nitrate, Current Reproductive Stage, and most importantly the type of eye viewing them.
Adam
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ewaldsreef
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Posted: December 19 2004 at 6:54pm |
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I belive lighting is the largest factor. That is just from my limited experance
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Contact me for professional aquarium maintenance and localy grown coral frags. [URL=http://www.aquatitranquility.com][/URL]
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j's55
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Posted: December 19 2004 at 9:04pm |
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Don't corals change color with age. I read a book at
barns & noble and it showed pics of corals and how
much they can change with age and lighting.
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Josh Zorn
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reptoreef
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Posted: December 19 2004 at 9:21pm |
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IMO, lighting is the greatest factor.
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Jake Pehrson
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Posted: December 20 2004 at 10:09am |
I mostly agree with Adam.
I think the two biggest factors are light intensity and spectrum.
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coreyk
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Posted: December 20 2004 at 11:04am |
I think that in our tanks (in my limited experience)
that
lighting intensity and spectrum have the most impact on color of my
SPS. From everything that i have read 6500K and 10K will give better
growth and 14K and 20K will give better color.
Personally i have found that my blue corals are really looking good
under a 14K Hamilton and my purple corals just become sort of washed
out under this bulb. However, my purple corals are looking fantastic
under my 20K 250s BLVs . I had a purple/purple cap that was actually
starting to die off under the 14K bulb, until i put it under my 20Ks.
One thing that i have not done is to take a coral
out of my 20K tank and put it under the 14Ks to see if it looses color.
I doubt i will get the chance ... I think i am going to switch the 14K
for a 20K when this bulbs is due for a change. I am VERY happy with the BLV 20K bulb.
I am
currently running 3 light configurations and have kept the same frag(s)
in all
three. I can post some really interesting comparison pics of a frag
that i got from
shaneH, if you'd like. The pics of this coral are under
14K(Hamilton)/T5s, 250w 20Ks(BLV), 150w
20Ks(Ushio), and a pic of when i very first got the frag from
shaneHs tank (10K/VHO). The difference in color of this coral is simply
amazing under the 20K 250s. I think i may have pointed this out to Jason, when he was over recently...
Edited by coreyk
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jfinch
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Posted: December 20 2004 at 11:53am |
First off, I don't think there is a definative answer to this question. It can vary between different corals. if you give coral A too much light it will develop more of pigment Z to act as a sun screen. Pigment Z might be a desired color or it might not. If you give that same coral A too little light it might develop more of pigment Y to better harvest what little light is available. Pigment Y might be very different then pigment Z... it might even be more desirable. It is the intensity of a particular quality of light that is important as near as I can tell.
And water quality does play a role. I don't think SPS will really color up if they're in nutrient rich waters.
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ssilcox
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Posted: December 20 2004 at 12:23pm |
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I have also read a few articles that say that alkalinity plays a large role in the color of corals
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Will Spencer
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Posted: December 21 2004 at 12:54pm |
I took this question to mean what makes a coral red or green or some other color. Lighting can make for different shade and even different colors, but I have a frog spawn in my tank with 2 heads. Each head is a different color. For all intents and purposes this coral gets the same light. With this coral being pretty much the same thing, (they share a skeleton,) why is one green tipped and the other pink tipped?
Edited by wsinbad1
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