What's going on?

[doveandgrenade]

A buddy of mine sent me a pic of his mono yesterday. Fish is acting normal, however, it's face turned half dark. All other fish in the tank are acting normal. I haven't seen the fish in person myself yet either. Tank mates include 2 Asian aros, 2 Motoros, another mono pbass and giant gourami.
Any suggestions of what's going on??




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[isde02]

Did he get tagged by the Ray?

 

[doveandgrenade]

I don't know. I asked my buddy and he said he sees nothing.
My first thought was that he got tagged or graze the rays barb and maybe it's paralysis?
But apparently there are no marks to indicate and he's acting as normal.


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[Aquanero]

I've seen that once before but can't for the life of me remember what it was. A cichlid turned half black over night. PM Modest-Man and see what he remembers about it.

 

[doveandgrenade]

I've seen that once before but can't for the life of me remember what it was. A cichlid turned half black over night. PM Modest-Man and see what he remembers about it.

I remember that as well. Was it a convict or jack Dempsey?


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[Anderman]

Hey it's "two face" from Batman. See if he has a 2 headed coin! LOL

 

[Aquanero]

I don't remember what the fish was but I remember it was bazarr. It could be somthing with a thyrod disorder or harmonal inbalance or the fish may have a thyroid tumor. Reasearch fish tyroid disorder or harmones.

 

[smoosh]

When my Orino was much smaller this would happen frequently... It's been almost a year since the last time I saw it... Was also unsure what it was


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[heatherbeast]

Kind of reminds me of gynandromorphism! Thank you for sharing. I hope the fish is okay, keep us posted.

 

[mattstevens1]

Something has damaged the fish's ability to control the chromataphores used to adjust color and pigment based on mood. Most likely a bacterial infection. The chromataphores on this side of the fish's face have defaulted to the darkest "setting" possible.

Just like humans, specific parts of the body are seperated and controlled by specific parts of the brain. That's why you are seeing a very specific line and area affected by the malady. It is NOT genetic. If it were genetic the fish would have been born this way.

I've seen this in a variety of fish over the years and it is always a specific quadrant of the fish's body that is affected. It is always very well delineated and typically affects the face. It will never get better and from now on the fish's face wil be black on that side.

As far as I know there is no known catalyst nor no known treatment.

And despite the posts stating that it is cool or neat, it is a biological failure due to unknown reasons. Not something that I would be excited about.

http://www.monsterfishkeepers.com/f...dd-coloration-on-a-pbass-have-u-seen-b4/page4