coralline changing

[nextlevelreef]

in the last two weeks ive notied my coraline getting light

water params

nitrate 0
mag 1150
cal 420
alk 6.4
sal 35ppt
temp 79

i know my mag and my alk are low could that be causing it or mabey my ATI powermodule it sits 6 inches of water level

thanks mike

[aentrop]

what are your phospates at?

[SeanT]

Have you made any lighting changes recently?

[beachbumva]

Mag can do it as well as extending your lighting period and or increasing it.

[fisherman2]

try raising the mag.

[nextlevelreef]

i run a deltec fluidized reactor for my phos and my lighting has been the same since day one im guessing it the mag and alk

[WaterKeeper]

My guess is that the lights are aging and the spectrum is shifting. Coralline exhibits many colors and is strongly influenced by the light conditions. As tubes age they change their K value and that can lead to changes in coralline color.

[WaterKeeper]

Sorry, scratch that last answer. I missed that the tank was only two months old. I'd still say it is a question of light. Your lighting differs from what the coralline was exposed to previously and is just starting to respond to the change. Unless it goes white that is not a problem.