Acclimating tank to new light bulbs

[Mr. Fish]

I just remembered that my new ATI t5 light bulbs are coming today. I am currently using two 12,000k odyssea bulbs and two actinic odyssea bulbs. I am switching to: 2 ATI blue+, 1 ATI aqua blue and an ATI purple+, so its a change in both par and spectrum. Do I need to acclimate my coral and clam to the new light bulbs, or do I just run them as normal.

 

[greech]

I would. Either cut the cycle back and then slowly ramp it back up or use some layers of screen and remove a layer at a time. The other option is to replace one bulb at a time. Maybe one per week?

 

[Brisc0]

I would personally take that last suggestion and change out one bulb every couple of days rather than going through the pains of screening or adjusting your timers. Add a new bulb every 3 days until your done. If your coraline isn't bleaching your corals are likely not burning.

 

[seapug]

Unless I'm misunderstanding something, you're going to be making the tank bluer with this new bulb combination. You were basically running a 50/50 combo before, now it's going to be more like 75/25 in favor of the blue, so I personally wouldn't worry too much about it.