Smittiferous
Well-Known Member
Does anybody know where I can find some references to monitor vision, and how good it is? I can't find a great deal on Google. Also curious to know how susceptible they are to visual defects, be it developed over time or from birth/hatching. My mertens has what appears to be best described as coloboma in both eyes, (and has had these odd eyes from day one) and doesn't seem to respond to visual cues, After sitting and watching him for a long period I observed him climbing to the top of obstacles in his enclosure, reach the top, and continue trying to climb thin air multiple times while staring straight up. I can even place my hands right in his face or all around his head and he doesn't bat an eyelid, so to speak. If he smells me, or if there's physical contact, it's on for young and old.
Out of interest, he hasn't eaten a single feeder fish in his tank. The person I purchased him from claims that feeder fish were his primary diet.
From the day I brought him home:
The other eye is far less pronounced in the images I have, but looks more severe now when I looked at him today.
Out of interest, he hasn't eaten a single feeder fish in his tank. The person I purchased him from claims that feeder fish were his primary diet.
From the day I brought him home:
The other eye is far less pronounced in the images I have, but looks more severe now when I looked at him today.
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