Tropical Fish Keeping - Aquarium fish care and resources

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-   -   Black Fin Sharks (http://www.tropicalfishkeeping.com/catfish/black-fin-sharks-85047/)

DuskDarkVoid 11-01-2011 11:50 PM

Black Fin Sharks
 
I got to black fin sharks from some people on craiglist, they said they were around 5 or 6 inches but when I measured them they were actually almost 11 inches. My question is would they be ok in a 30 gallon tank by themselves? The tank would just be for them and no one else or would it be good to try to find another home for them? I really wanna keep them because they look beautiful.

Boredomb 11-02-2011 12:36 AM

When you say Black fin shark I assume you mean Colombian shark catfish (Hexanematichthys Seemanni)? If so this fish will get quite big up to 14" and will need a tank that is 5ft+ as it is a shoaling fish that needs room to do so. Also needs to be in brackish waters the bigger it gets.

DuskDarkVoid 11-02-2011 02:23 AM

Ahhh ok. I wanna keep them but I don't feel like dealing with a brackish water tank. I'll just take them to a pet store in San Diego so they can take them off my hands. Thanks for the info =]

Boredomb 11-02-2011 02:27 AM

Quote:

Originally Posted by DuskDarkVoid (Post 882003)
Ahhh ok. I wanna keep them but I don't feel like dealing with a brackish water tank. I'll just take them to a pet store in San Diego so they can take them off my hands. Thanks for the info =]

Before you do wait till someone more experience answers as I am still learning and I am not sure if that is exactly the fish you have but I think so :-?

DuskDarkVoid 11-02-2011 02:36 AM

Well it is the colombian shark catfish like you said.

Boredomb 11-02-2011 02:50 AM

Quote:

Originally Posted by DuskDarkVoid (Post 882007)
Well it is the colombian shark catfish like you said.

Ok well then I have read it doesn't fair so well when it gets bigger in freshwater and needs to be in brackish.

DuskDarkVoid 11-02-2011 02:52 AM

Hmm ok, it would be better for me to give them away than to try to take care of them, I don't wanna stubble with them and then they end up dying.

Byron 11-03-2011 03:52 PM

A 30g tank is certainly too small for any fish that is now 11 inches--and two of them--and will (if it is given opportunity and is in good health) get even larger. So the answer to your last question is, if you can provide a 5 foot tank now, you could consider keeping them; if not, find another home for them.

The above is the first main issue; after that, there is the matter of their temperament, needs, other fish, etc.

Byron.


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