Predatory fish in a 55 gal?

[kevbc03]

Hey everyone I was searching through my garage and found a 55 gallon tank.

I have kept community, and semi aggressive fish in the past and I wanted to try something new.

I was wondering if there are any predatory fish that can be kept in a 55 gallon for life...if so, what kind?

**Single Specimen**

 

[BradT85]

Gulper catfish is what i would do with a 55 and only wanting a single fish.

 

[tcarswell]

Gulper cat fish , Delhezi bichir or polypterpus bichirs. Also needlefish. A lone Oscar

 

[Hayabusa]

I would also go gulper

 

[kevbc03]

The needlefish looks pretty cool, so does the gulper catfish. So all of these can be housed in a 55 for life as a single specimen?