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Black Fin Sharks

9K views 7 replies 3 participants last post by  Byron 
#1 ·
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.
 
#2 · (Edited)
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.
 
#3 ·
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 =]
 
#8 ·
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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