What the secrect for NO BROWN coral?

Tank size is 120g. I have adjust it now to 35% white and 90% blue.

 

Dingo is right, its your lighting.

Things will appear to be brown/yellow tint looking if you have to much white light. You might want to set your lights back to 70-80% and 30-40% and slowly raise your brightness to the desired (color combo), this will prevent bleaching of your corals.

I accidentally typed in 70% instead of 50% power for my blue LEDs one day and I bleached some coral in hours. Just make sure to take it slow when you are adjusting your lights, LEDs are pretty powerful.

 

You might want to swap out some of the NW/CW for more RB and B LEDs.

 

Should I remove 3 NW and 3 Cw. And add the blues?

 

For example I have their 24 LED kit and here is my color combo.

10 royal blue, 4 blue, 6 cw ,4 nw

Since then I have added uv and cyan but I feel my color combo looks good.

 

How long will it take for coral to gain it color back?

 

No idea, hopefully someone can chime in on that. I'd also like to know.

 

they never lost it, it just is not being expressed as much because in white light the brown produces more energy than green.
If you slowly move your lights a little bit more blue every day, you will get the colors very quickly... usually between a week and a month

 

Don't some corals have a brown coloring to the? even under my mostly blue LEDs my staghorn has a brown base.

 

Yes but if they weren't brown at the LFS, they shouldn't be brown in our tanks!