Near infrared light

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brooklyncrabs
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Near infrared light

Post by brooklyncrabs » Wed Jul 29, 2020 1:22 pm

Hi all

I want to put a camera on my crabs to see what they do at night.

However I am wondering if they can see the near infrared light that most cameras would emit to see in the dark.

I wouldn't want to keep them awake ...

Anyone know?

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JoeHermits
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Re: Near infrared light

Post by JoeHermits » Wed Jul 29, 2020 10:13 pm

I don’t know how much of the light spectrum they can see, however Wyze Cams use infrared night vision, which many crabbers have used without reporting affected behavior.


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wodesorel
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Re: Near infrared light

Post by wodesorel » Thu Jul 30, 2020 12:49 am

We really should test this - if they react to a moving shadow cast by the infrared light, you'll know if they can see it!
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Maddamay32
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Re: Near infrared light

Post by Maddamay32 » Thu Jul 30, 2020 2:50 pm

I've recently been paying more attention to how active my crabs are with the wyze cams on and off. I've been reluctant to believe it but I definitely have more crabs out for longer when they are off.

I have been leaving them off for 2 days in a row and then will turn my wyze cams on for 1 day. I have 1 cam on the right and 1 on the left. Some days I will only turn on 1 cam and the crabs will tend to avoid the end of the tank that the cam is on. And on the days that both are off I will see almost all my 9 crabs up at once, compared to the nights when I have the cameras on when I will usually only see the same 2 out.

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Hermielover121
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Re: Near infrared light

Post by Hermielover121 » Fri Jul 31, 2020 10:49 am

Oh really that’s so weird because my hermit crabs love the Wyze camera ( I have it leaning up against the outside of there tank ) they always go right up to it and try to see what it is. I have not seen if they are more or less active but I don’t think they mind the Wyze cam.
Image
This photo I have right here is from when I caught my hermit crab right up against the glass looking at my Wyze cam on the other side of the glass


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brooklyncrabs
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Location: Brooklyn New York

Re: Near infrared light

Post by brooklyncrabs » Fri Jul 31, 2020 11:15 pm

I've been trying to find research about what the crabs and their relatives can see. haven't seen any mention of infrared in a preliminary search - some relatives to crabs seem to see UV, other side of spectrum.

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