can we learn anything about a fish from it's eye color???

[Magnum Man]

My South American tetra tank, has fish with blue eyes, green eyes, and red eyes, my Denison barbs have an orange / red continuation of their body streak, that goes through their eyes, I can think of, but don't own any fish with golden eyes, and black eyes... and really what color are lamp eye fish??? just what ever is reflected back to us, from the tank lights.... any other colors you can think of, and anything specific we can tell about the fish, by their eye color???

 

[Magnum Man]

so, on the palmeri, males have blue eyes, and females green eyes, so on that fish, that's what I can tell... the lacortei, which is a very similar fish, that I've been trying to get, at least the males have red eyes, not sure if there is a sexual difference there, but eye color, doesn't seem to generally indicate sex. the red eyes in that tank currently only belong to angel fish

I read an article on red eyes, and they were supposed to be better for seeing in black water conditions, but many of the other eye color fish live in the same neighborhood???

 

[TwoTankAmin]

The L173 I breed have golden eyes. So do most of the L236 variant of the H. seideli. Here is one of my pics of L173s.

Then there are the Pseudomugils- dwarf blue eyed rainbowfish. Do a Google for "pseudomugil" and then hit images and you will see many blue eyed fish.

 

[FrankJ07]

Thanks for help!

 

[Colin_T]

Fish that have a line running across their eyes are using the line to hide (camouflage) their eyes so they don't get eaten as readily. A lot of marine butterfly fish have a black line running across their eyes and many have a false eye (eye spot) on the rear half of their body. A predatroy fish will usually aim for the head and when they see an eye, they attack that. If the predator attacks the eye spot at the rear half of the fish, and the fish moves forward to escape, it can confuse the predator and help the prey fish get away (sometimes with no injury or sometimes with a bite to the tail, which is better and more survivable than a bite to the head).