Which fish for a 180 gallon with FX5?

[tyndall72]

Get some bichirs!

 

[shua]

gator gar for a year or two

 

[daveydoodle]

Arowana, with some bottom dweller! Take advantage of having a large tank like that! Everybody that comes into your house and views this tank will be amazed with an Aro. Plus, with a grown Aro you won't have a hard time reselling if you change your mind later.

 

[kjfan1]

I would do one jar.