My tiger fish dosent swim alot, why?

[Deubie Doo]

5 inch goliath tigerfish sits and just chills around my scombs. I thoght they were constent swimmers! The tanks wide open besids a floating plant and alittle driftwood in the cornner of the tank with dim lights. He dosent hide and sits in the open, hes starting to become boring because he never moves.
can anyone help and give me some comments?
thank you!

 

[C L O W N K N I F E]

Do you have a lot of current in the tank?

 

[Deubie Doo]

yes I have 3x the curent I should have with lots of air pumps and 2 jets!

 

[Oddball]

Just about any predatory species, when young, has a huge defensive instinct. That's why you see young shoal whereas their adult counterparts wouldn't necessarily do the same. At his current size, he's a good snack for alot of species adult specimens wouldn't worry about. Including the possibility of being eaten by his own species. Give him time and let him settle in fully and as your AT grows, he'll naturally become more adventurous and will look to take over all the best cruising areas of the tank.