I need some advice!

[Preacher]

I have a 720 gallon plywood aquarium with 150 gallon sump. I have 2 bd hybrid stingrays, arowana, and 12 severums. I am looking at adding some more fish. Any recommendations on good tank mates. Thanks in advance.

 

[kno4te]

Flagtail or fire eel?!

 

[DrownedFishonFire]

Keeping it related to south american a school of silver dollars ? Striped/tiger etc all kinds of silver dollars out there

 

[SuperNinja]

+1 Flagtail

 

[Preacher]

Flagtail or fire eel?!

I have not thought about or ever had a flagtail. Now have to do some research. How are aggressive are they? Would the fire eel be to aggressive?
Thanks in advance.

 

[Preacher]

Keeping it related to south american a school of silver dollars ? Striped/tiger etc all kinds of silver dollars out there

Some tigers would be nice . I will have to start looking for them.

 

[Preacher]

What do y’all think about a datnoid or 2?

 

[kno4te]

I have not thought about or ever had a flagtail. Now have to do some research. How are aggressive are they? Would the fire eel be to aggressive?
Thanks in advance.

Not aggressive.

 

[mrrobxc]

+flagtail. Larger Leporinus species. Larger geos and/satanoperca.

 

[phreeflow]

Also
+1 Flagtail
+1 Geos