Fish and Infrared

[Ocean’s Piece]

So I got a wyze camera for my tank when I’m away from my house for extended periods of time. I was playing around with the night vision settings of this camera and I realized after a bit of research that fish can see infrared. Do you think that the light from the infrared bothers the fish at night or is it not something to worry about? The whole tank looks like I’m shining a flashlight at it, it’s crazy, I can see everything

 

[ZoWhat]

IR is above visible light that any animals can see

 

[Uncle99]

Not something to worry over.
Mine seem at act the same, on or off.
Never seemed bother/startle, my fish seem oblivious to its use.

 

[ZoWhat]

 

[Ocean’s Piece]

Alright thanks everyone

 

[Malcontent]

My fish do react when I spy on them using my PVS-14 and an IR illuminator. Even when it's pitch black. They might be able to see the glow from the eyepiece (which isn't pressed tightly to my face at night when I'm wearing glasses or if I'm trying to take a picture through the eyepiece). Or maybe they can see IR.

Can a predator see ‘invisible’ light? Infrared vision in ferrets (Mustela furo)

Infrared (wavelengths >750 nm) light-emitting equipment is commonly used worldwide to monitor nocturnal predator and prey behaviour. However, it is possible that the infrared (IR)-light wavelengths emitted from the equipment are so close to the spectral threshold of some key species that the...

www.publish.csiro.au

Camera Traps Can Be Heard and Seen by Animals

Camera traps are electrical instruments that emit sounds and light. In recent decades they have become a tool of choice in wildlife research and monitoring. The variability between camera trap models and the methods used are considerable, and little is known about how animals respond to camera...

journals.plos.org