Yellow in sps

[Amy]

Hi,

I was wondering what could I dose or do to increase the yellow in my sps. I've purchased a yellow anacropora a little while ago, it was bright yellow when I got it now it's very pale but growing.

Thank you.

[G.Alexander]

I had the same coral in my system also and it exactly looked like the one in the second picture. I do not think you will be able to keep it as yellow as in the first picture however the coral looks really healthy. Keeping yellow of a coral is really difficult and it does need a very low nutrient concentration and a lot of light from my experience.

It is a Anacropora forbesi, you can find some more information and pictures from the natural environment over here:

http://www.coralsoftheworld.org/spec...opora-forbesi/

Here is a old picture of the one I had:

https://forum.zeovit.com/forum/lives...ropora-forbesi

G.Alexander

[Amy]

Thank you for the info, I will try to bring him up a bit, maybe he does need more light.

[Michal]

Yellow color, a white crow of Acropora keeping I never had luck in maintaining yellow color on Acropora for long time. They always slowly turned green-ish.
While I searched for solution I found pictures of yellow Acros in the old threads around the internet. In most threads where I found reefers who had a success with keeping yellow SPS, they kept them under metal halides, 10k bulbs.

[G.Alexander]

What Michal said is my experience also. Yellow corals are not very common and I had the best success with them directly under 10k halides (close to the water surface), undetectable nutrients, low element dosage and strong skimming. If dosed a little bit to much of iron or iodine for example the tissue become a green shine the next day.

The sarmentosa was one of the most beautiful corals I had in yellow:

https://forum.zeovit.com/forum/lives...ora-sarmentosa

G.Alexander

[Amy]

That is a beautiful acropora, I will try to get my hand on one of those.

Thanks for the help, I will try to move it see if that makes a difference.