What are these black spots?

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Mel88

Aquarium Advice Apprentice
Joined
Dec 29, 2013
Messages
13
Location
Bathurst Australia
I have these black spots on my Cobalt Blues and Electric Yellows and would like to know what they are. I was told that it's cell damage from them biting each other but I'm not sure. They have had them for months and still seem healthy, eating and growing well.

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Nothing to worry about its quite common for mbuna. Some say its from feeding to much sperlina based foods. Im not sure if there is actually any truth to it though.
 
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