green slimer lost its green.

[stickx911]

I recently added a something that looked like**see below** frag to my 30g. Half was flattened out as it was laying sideways in the persons tank I got it from, but after mounting, it has grown polyps back on the other side, as well as showing good polyp extension overall, but its lost its green, and is more of a dark brown. Other than color, it seems to be perfectly healthy. Any ideas?

Credit goes to Tim (keen reef) for the pic, as it sparked my question. I hope its cool I borrowed the picture.

 

[ralph atl]

too much nurients

 

[ralph atl]

The brown comes from the zooxanthellae. If the zoo is not getting enough http://www.thereeftank.com/forums/tags.php?tag=light"><span style="color: #000080">light</span></a> then they tend to reproduce faster in order to absorb more of the available light. That is when corals "brown out". When they are in higher lighting they seem to maintain a smaller size colony and more of the color comes out of the coral while the brown diminshes. This can also be the case if there are higher nutrient levels in the tank.

from TRT ^^^


here:

[IMG]http://www2.hawaii.edu/~delbeek/delb17.html">http://www2.hawaii.edu/~delbeek/delb17.html</a>


great read above in link

 

[zdaytonaroadster]

Hmm, that would explain why my brown acro became green when i went from t-5 to MH

 

[stickx911]

ares;314697 wrote: ussually brown means it the par/spectrum is lacking

I've got it under 250w pheonix 14k, maybe 5 inches below the surface. Is it new bulb time already (well, the bulb is about 9 months old...so I suppose)?

 

[ralph atl]

those things should last well over a year. It doesn't sound like light in your case "in light of this".

 

[stickx911]

Clicking on the link in a second, but nutrients as in time for a water change or too much of the good stuff (calcium, alk, etc)? So I suppose my new skimmer will help out greatly.

Thanks for all the help guys.

mysterybox;314704 wrote: The brown comes from the zooxanthellae. If the zoo is not getting enough http://www.thereeftank.com/forums/tags.php?tag=light"><span style="color: #000080">light</span></a> then they tend to reproduce faster in order to absorb more of the available light. That is when corals "brown out". When they are in higher lighting they seem to maintain a smaller size colony and more of the color comes out of the coral while the brown diminshes. This can also be the case if there are higher nutrient levels in the tank.

from TRT ^^^


here:

[IMG]http://www2.hawaii.edu/%7Edelbeek/delb17.html">http://www2.hawaii.edu/~delbeek/delb17.html</a>


great read above in link[/QUOTE]

 

[ralph atl]

check this out on Phoenix

 

[ralph atl]

you might have to start on a VSV diet!

 

[stickx911]

mysterybox;314728 wrote: check this out on Phoenix

http://reefkeeping.com/issues/2007-04/ac/index.php">http://reefkeeping.com/issues/2007-04/ac/index.php</a>[/QUOTE]

So by that link, would 75% of the original strength be reason to replace, or for my small tank, would that be enough light? all my corals have kept their colors, as well as growth rate.

This SPS, is at the same hight as a ORA green birds nest, and a starry night coral.

(that was a great read btw)

 

[derek_s]

I am hooked on vsv. I really like the effects, and would recommend it to anyone wanting to push their nutrients down (assuming they are willing to do teh research to understand teh risks and benefits)

 

[stickx911]

vsv?

 

[weaglereefer]

Vodka, Sugar, Vinegar. I'm still researching and considering it.

 

[ralph atl]

VSV

vodka sugar vinegar= carbon dosing


http://www.reefkeeping.com/issues/2008-08/nftt/index.php">http://www.reefkeeping.com/issues/2008-08/nftt/index.php</a>


[IMG]http://reefcentral.com/forums/showthread.php?s=&threadid=1225324">http://reefcentral.com/forums/showthread.php?s=&threadid=1225324</a>

 

[ralph atl]

and here:

 

[stickx911]

:confused2:
...I think I'll just replace my carbon