my catfish is acting strange

[purplephilly]

I have a 150 gal tank with 5 tinfoils,6 tiger barbs,3 skirted tetras,3 p?,2 bala sharks, yesterday I got 3 gouramis and 1 catfish.
there is not any ammonia in the water and the ph is 7
the gouramis are doing fine but the little catfish is swimming on the top back and forth from one end of the tank to the other. is something wrong or do they just do that?

 

[clutterydrawer]

what type of catfish is it?

 

[purplephilly]

I'm sorry I don't know what kind it is but it looks just like a river catfish only really small..

 

[Teelie]

Look at http/planetcatfish.com and see if you can find it. If it's a Channel Cat, then you need to get rid of it or get a large pond.

 

[purplephilly]

Sorry it wasn't a catfish it was a blackfin shark. please don't tell me he is gong to get huge. he is in a 150 gal tank

 

[purplephilly]

well my black fin shark was starting to slow down and my biggest tinfoil barb attacked him and killed him??I was shocked. He ususally doesnt' bother anything..

 

[Teelie]

Some fish will do that. Normally they're docile and passive but when they come across a sick or dying fish, they get vicious.