PC Rainbow has random white spots.

[Zeal]

Alk 10.0
Nitrate 0
Phos 0.036
Calc 425
Mag 1380


Recently added a radion XR15W Pro Gen 4(running Red Sea 90) to my tank because the SPS was getting ton of shading I’m running it at 60% all blues 100% whites at 3% red and green 2%(I hate the whiteness)

I’m guessing the lack of nitrates and the new light is making it bleach? The PC Rainbow has full polyp extension still and so does the SPS

 

[Graffiti Spot]

Looks like areas that new growths starting where the lights hitting it best.

 

[Zeal]

Looks like areas that new growths starting where the lights hitting it best.

Doesn’t look like bleaching?

 

[Homewrecker]

I have this happen with lower nutrients as well

 

[Graffiti Spot]

If it keeps getting worse and covers the whole coral it would be bleaching. Bleaching doesn’t really happen in small areas and usually is the whole coral. Most people don’t get the light colored new growth these days because everyone’s keeping lots of nutrients and not using strong light anymore. Home wreckers right and lower nutrients help right out lighter colors and brighter new growth areas. Just make sure it doesn’t get worse, if the flesh is still healthy and growth is forming your ok.

 

[Zeal]

If it keeps getting worse and covers the whole coral it would be bleaching. Bleaching doesn’t really happen in small areas and usually is the whole coral. Most people don’t get the light colored new growth these days because everyone’s keeping lots of nutrients and not using strong light anymore. Home wreckers right and lower nutrients help right out lighter colors and brighter new growth areas. Just make sure it doesn’t get worse, if the flesh is still healthy and growth is forming your ok.

I mean my nitrates are 0 as of yesterday.

 

[Graffiti Spot]

Oh man here comes the 0 nutrient calvery. I would lower your alk if your testing with good low range kits. Alk above 8-9 for most people causes issues with lower nutrients. But I have seen some reefers do fine at 10 but they fed very well.