The effect of red lights? Must read!

[Aquatic Aggression]

I know both red and green are the most visible color to the human eye. Nothing to do with fish but I know that's why most illuminated scope reticles and dot sights for firearms are those colors.

 

[F1FlowerHornA1]

Ok, I read it. This is about feeding stimuli which I did not "challenge", but rather I just stated that perhaps fish don't see red wavelengths as we do.

And from what I read, it appears there's a correlation but inconclusive.

"It is interesting that feeding behavior stimulated by a red environment cannot be attributed to responses exclusively mediated by vision. While fish also ingested pellets in the dark, possibly using chemical cues, test 2 of study 2 clearly showed a chemical effect. Fish were undoubtedly attracted by chemical cues, a fact supporting the hypothesis that red light might stimulate motivation for feeding, thus involving another sensory modality (chemical sense). This discards the theory that response of red-stimulated fish was an effect of vision, but instead is something more deeply in the organism, perhaps in the central nervous system."

Well either way, no need to argue. It seems to be there is skepticism both ways. For all we know it could have been stress due to the different color light or like you said, their nightly routine lol

 

[ehh]

that was a really interesting read aquanero

 

[jaws7777]

Im with xracer on this.... i think the jd is comming into his own plus the size of the tank

 

[Buphy]

Tank lights come on and he's back to his laid back self though.

 

[F1FlowerHornA1]

But yet they still think he is coming into his own? Lol. The only changing variable was the red light...

 

[RD.]

While there's some interesting information in the links provided, certainly nothing conclusive can be drawn from a single study involving tilapia. Even the authors allude to that in the quote that xraycer posted. That, and they were using a completely different species than what the OP is discussing, and much of this has been demonstrated in past studies to be species dependant.

 

[Buphy]

Well the study will continue. Tonight I'm gonna try it again and observe.

 

[jaws7777]

Tank lights come on and he's back to his laid back self though.

Lots of things happen when those lights go out. Im just saing its what i would think causes it. Lots of damage in my 75 happens after lights out.

But yet they still think he is coming into his own? Lol. The only changing variable was the red light...

I have red lights and never seen this behavior expalian that. How do you know whats happening when the lights completely go out. Not the blue but nothing at all ? The variable is that the op was able to see it with the red lights but we dont know that its not happening when its completely dark.

 

[F1FlowerHornA1]

Lots of things happen when those lights go out. Im just saing its what i would think causes it. Lots of damage in my 75 happens after lights out.



I have red lights and never seen this behavior expalian that. How do you know whats happening when the lights completely go out. Not the blue but nothing at all ? The variable is that the op was able to see it with the red lights but we dont know that its not happening when its completely dark.

No i agree with you, I was just stating what i've read about the topic. It could be a number of different things, it seems there is no definite answer to the effect of red lights.