This graphic compares the light spectrum visible to three South American cichlid species (left) with the spectrum visible to many African species (right). South American cichlids have visual systems adapted to the red-shifted light environment of murky Amazonian waters. Credit: Daniel Escobar-Camacho
Recent research on Chichlids suggests that fish may have color vision. Read the article by clicking on the title or picture.
If you want to better understand ion exchange in Koi, take Professor Strange's excellent class onthe Physiology of Water Quality for Koi - #521 - http://koiorganisationinternational.org/course/physiology-water-quality-...
This study reflects new research on how fish control excess ions - read the article by clicking on the picture or title.
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