I don't think the water movement speed will change the shape of a fish, but successive breeding in captive environment will. I notice wild caught fish tend to be more slender than captive breed fish. Examples are wild caught green terror, jack dampsey and midas in comparison to domesticated fish. Another change could be artifical selection, as Asian breeders like to pick high body form.
IS THIS BEAST REALLY A MAYAN CICHLID??
- Thread starter jagsandpits
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The JDs in nature in the cenotes have little noticeable current, yet are much more torpedo shaped than most aquarium dwellers. It may be that they get much more exercise while swimming much greater distances, and much less high fat, high protein food. And although the uros in Escondido were high bodied, they would seem quite emaciated by most aquarium standards.
No its the morphology they attained through evolution, so they pass off that shape to their offspring etc.
yea like macroevoloutions, sick tho, I heard something about jaguar cichlids pigment changing over a long periods of captivity cuz of lack of sunlight, some guy said something about in dim lighting a wild caught jaguar has a blue or red hue to it , but a long line of captive jags don't show tht hue
