help! my shark cat

[silvertipped shark cat]

i got my shark cat and three tiger barbs yesterday and my shark is swimming back and forth on top of the tank . ineed some advice plz help?

 

[Aquascaper]

As your post has the word emergency in it i would re-post in the tropical fish emergencies section, you should get more replies

When you do you will need to give more info like tank size, what your parameters are, what equipment you have, etc.

HTH