Blue LEDs Causing Fish Agression?

[EricR]

Switched from all white LEDs to reef blue/white/etc (mostly blue-ish) LEDs and my 2 fish who used to be best buds freaked out and got aggressive towards each other. Have set reef LEDs back to white only and they seem OK now.

Anyone else have this experience and, if so, what was the long term outcome.
Hoping I can just start gradually skewing the color to be more coral-friendly and the fish will just get used to it.

More details in case of interest:
Did a tank transfer so fish were obviously already stressed but seemed to be getting used to it.
Tried to go bluer on the lighting after maybe 5 days but that triggered massive panic.
(Current lights are 1x Nicrew HyperReef 50W + 1x Kessil A80 above 40 gallon breeder)

*found a few other reports like this on the Internet but no long term outcomes so that's what I'm really interested in

 

[blaxsun]

Well, when I inadvertently turned my Radion G5s on and off one afternoon while troubleshooting - it totally freaked my fish out (note: they're also not a fan of the "lightning" mode, and go absolutely batsh*t when I switch to "disco"). Never heard of this before to be honest, but just about every LFS that offers corals has a lot of blue light and various fish to maintain the coral systems.

 

[MnFish1]

Switched from all white LEDs to reef blue/white/etc (mostly blue-ish) LEDs and my 2 fish who used to be best buds freaked out and got aggressive towards each other. Have set reef LEDs back to white only and they seem OK now.

Anyone else have this experience and, if so, what was the long term outcome.
Hoping I can just start gradually skewing the color to be more coral-friendly and the fish will just get used to it.

More details in case of interest:
Did a tank transfer so fish were obviously already stressed but seemed to be getting used to it.
Tried to go bluer on the lighting after maybe 5 days but that triggered massive panic.
(Current lights are 1x Nicrew HyperReef 50W + 1x Kessil A80 above 40 gallon breeder)

*found a few other reports like this on the Internet but no long term outcomes so that's what I'm really interested in

My guess is that it was too much too soon. The light could have seemed 'brighter' leading to more fear, etc etc. Any change that makes the environment look 'different' to the fish - can make them see 'differently' - ie not recognize a formerly friendly ally. Check out what fish see using google. They do not see the others the way we do.

 

[MnFish1]

Reef Fish See Colors Humans Can Only Dream Of | The Science Explorer

[object Object],

thescienceexplorer.com

Coloration - coraldigest

coraldigest.org

FYI. I cant remember where I saw the pictures of what fish actually see

 

[EricR]

Thanks everyone. Interesting reading,,, and makes sense.

One of my lights does NOT have very fine control over the color variation.
If it did, I'd be less inclined to worry about when/how I should go about starting to try to acclimate my fish to shifting to a more blue-ish hue, but that's a separate topic (which controllers work with which lights).

 

[Mr. Mojo Rising]

I can believe it, I would go nuts too if I had to live the rest of my life under blue lights.... I guess they would need to be acclimated to get used to it.

 

[EricR]

I can believe it, I would go nuts too if I had to live the rest of my life under blue lights.... I guess they would need to be acclimated to get used to it.

Me too -- I actually like regular sunlight look but "think" I have to add at least some blue if I want to try some easy corals.

Not sure but my main dilemma right now is having two totally different lights and no way for me to fine tune the color well on one of them (Nicrew),,, other than just white channel, which is what I'm using for now.

 

[dvash]

I got some ember tetras last week, and now have 3. Today when the "moonlight" setting came on, only one of my ember tetras started acting pretty aggressive to the other two. I turned off the light and it immediately started schooling with them again. I thought it was so strange. I don't like the moonlight setting anyway..