Sps STNing at the tips

[brownjoshua475]

Hello there I have a couple high end acros that are starting to stn at the tips all parameter are in check.

No3 5ppm
Po4 .02ppm
Dkh 9.2ppm
Cal 460 ppm
Mag 1410 ppm

Not sure what's going on I run the new radion xr15 gen5 blue with reefbrites. I run the AB+ and have everything set to 100% and point intensity is at 90%

 

[sticksreef]

Did you switch light recently? Maybe too much light from the new light.

 

[brownjoshua475]

Did you switch light recently? Maybe too much light from the new light.

It's been running for 2 months now