flash zebra

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In 2009, I bought a 2' jur from George, the owner of Shark Aquarium, NJ. It almost had no pattern at all. We spent some time chatting. It was a fish that he caught himself in SA and showed me a picture where he is in a kayak holding up a beautiful orange-striped juruense. He said it lost the colors within 5 min of capture and they never came back. The fish spent 1-2 years at his store. I will scan the picture he gave me to show you, guys.
 
Here are the pics: George, having just caught it at ~1.5' or so; and a post-mortum pic at 2'

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Here are the pics: George, having just caught it at ~1.5' or so; and a post-mortum pic at 2'



Hmmm this is interesting. Look how murky the water is where it was captured. I have a feeling that part of it is the light levels. In the murky waters that fish doesn't get much light. In an aquarium even if you don't have a light on it is clear and you get ambient light. As for it losing it's color in 5 mins well we all know how fast a fish can pale up once stressed. I think the post mortem fish looks a lovely dark color. Thanks for sharing. A lovely fish either way. Did you keep the fish in an aquarium or pond for curiosity sake?
 
Here are the pics: George, having just caught it at ~1.5' or so; and a post-mortum pic at 2'

that is a beautiful cat! it still had a bit of the pattern in the death shot. i agree with necro on the light and add that maybe if the water was tannic it may have regained the pattern. the chemicals the tannen contain can affect sensitive fish such as catfish were they will behave differently and even display a different pattern in tannic waters.


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has anyone kept jurus in tannic tanks? i started thinking about that. all my jurus that lost their pattern were in clear high light tanks. their eyes being so small leads me to think that they are from vary dark tannic waters were they use their wiskers/smell more then their eyes. thus if they are placed in dark tannic tanks they may feel more relaxed and show their patterns. as aposed to being kinda constantly stressed out by bright lights with clear water. something i thought about.


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has anyone kept jurus in tannic tanks? i started thinking about that. all my jurus that lost their pattern were in clear high light tanks. their eyes being so small leads me to think that they are from vary dark tannic waters were they use their wiskers/smell more then their eyes. thus if they are placed in dark tannic tanks they may feel more relaxed and show their patterns. as aposed to being kinda constantly stressed out by bright lights with clear water. something i thought about.


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Mine was kept in a clear tank with no lights, and just had whitish stripes and a very dark black coloration overall. Never got to see it full size, but still looked amazing to me. Only had one eye. No scar and fused bones during prep of the skeleton lends me to think he was born without it. You could barely make out the stripes to be honest. It was an extremely dark fish, but I really loved the way he would tripod all the time and would come up to take shrimp from my hands.
 
These are the last pics I have before his murder, so I guess there was some developement of his pattern starting at this point. There was never any lights on this tank, but it was in a window with just a white sash so he had some light on him most of the time during the day.


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Look how murky the water is where it was captured.
Amazon is generally pretty muddy but this is a night shot (in Peru, I think... upper Amazon) - I cannot make out the water clarity. How do you figure? Just trying to learn.

I have a feeling that part of it is the light levels. In the murky waters that fish doesn't get much light. In an aquarium even if you don't have a light on it is clear and you get ambient light.

IDK/not sure. They appear to be strictly night time hunters in the wild - water clarity shouldn't matter at night. In my tanks (an extremely unnatural environment for them), I note that they pale up notably when there is no light at all. What it means, I have no clue.

Did you keep the fish in an aquarium or pond for curiosity sake?

Out of ~50 fish, he was the only one who didn't make the 8-h ride home (in his own cooler). He had a huge open wound on his tummy that was noted only when we arrived. George used a tranquilizer - I don't think he OD'ed but no one can be 100% sure... especially with as big a wound as he had. I was devastated but at least George was kind enough to give me a store credit.
 
I always thought "Flash Zebras" were a variant of the B.Juruense; depending on their collection points. I dont think water conditions for e.g. tannic would have contributed to their yellow coloration.

Do note ! Flash Zebras are yellow and Juruense is golden copper.

Here's sharing mine which passed away recently and it has been with me for 1.5yrs :(

What do u make out of mine ?
Brachyplatystoma cf. flash ?

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That is a beautiful zebra but is it alive?..It looks as if it has been out of the water for a while?


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