LED Burn from Spectrum Change?

[Johnson556]

My 180G runs six 80W T5's and 3 Kessil A360W. For about 6 months my light schedule has been:

-T5's on at 2PM off at 8PM
-Kessils ramp up from 20-60% from 11AM-2PM, then back down from 6PM-10:30PM

Last week I changed the color from 10%-60%-10% throughout the day to 10%-50%-10% giving it a 10% change towards towards the blues. Now it looks like all the tips of my acro's are burnt from an LED burn? Is this possible just from changing the spectrum on the kessils? Or should I look into other potential issues

Alk has been rock solid at 7.5dKH for over two months, so I'm going to factor out an alk spike causing this.

 

[Flippers4pups]

With water pramameters that are stable, changing lighting suddenly could cause this. Use of a par meter when changing spectrum and intensity is best. Knowing values before adjustment allows for small changes over time without shocking corals.

 

[jda]

If that is the only thing that you changed, then go with that. Simplest thing is usually the thing.

 

[Johnson556]

Certainly hope so, tank is a disaster right now

 

[Johnson556]

I certainly hope so, Tank is a disaster right now

 

[Vahanyos]

From such a small change of a spectrum tho?? I would understand going from all blues to whites... but OP said it was only a 10%

I too am curious because I just changed my lighting schedule on my hydras and I am for sure getting a little less PAR and the color spectrum is different as well. More white... no negative side effects yet but we’ll see after a week or so...