Black shark - unlikely giant in more ways than one

thebiggerthebetter

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Dec 31, 2009
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Shoaling? Never would have thought but perhaps it depends on the gender.

I got three in 2015. One was killed in the 240 gal jerk tank a year or two later at 8" or so. One died for no good reason a year or so later at around 10"-12". The last survivor plus a 12" rescue that came in around that time reached 1.5' but no more and wouldn't share anything in a 25K gal. One was a constant chaser and the other a regular challenger and wonderer into the territory of the alpha aka the feeding end of the 50 ft tank :)

I hypothesize they both are males because of smaller size or slower growth. Well, one still is and the other was. After I placed beluga sturgeon into the 25K, they had to go. The one which went into a 240 gal is still with us. Doesn't grow whatsoever it seems. The other (the rescue) was housed temporarily in a QT 120 gal, less than half filled, hence covered loosely, until I decided where to house it, but it wouldn't take the temporary cramp and jumped out on day 2 or 3 to its demise and my learning that they do jump when needed.
 
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Fishman Dave

Potamotrygon
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Nov 14, 2015
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Got the camera out to photo my clown loach and low and behold, any showing off or disagreements stopped and both the new (now 4-5”) black sharks were straight there, in front of the lense. The only jostling was to be the one in the photo!!
Amazing, turns out it could be a trait of all black sharks, their inquisitive nature.
6FAE65A1-4D92-4B6F-84E5-F9C798D07CE3.jpeg544C4C64-00AF-4FC2-9DB1-6D661CDE0A87.jpeg08F1E26B-4DDD-490C-9272-7AE9DC902998.jpeg
 

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Goliath Tigerfish
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May 7, 2013
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Got the camera out to photo my clown loach and low and behold, any showing off or disagreements stopped and both the new (now 4-5”) black sharks were straight there, in front of the lense. The only jostling was to be the one in the photo!!
Amazing, turns out it could be a trait of all black sharks, their inquisitive nature.
View attachment 1462489View attachment 1462490View attachment 1462491
Looking at the dorsal fins they seem to be a pair, lucky you!

Edit for spelling
 

thebiggerthebetter

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Naples, FL, USA
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