Stocking a 500 gallon indoor pond

[oscar and arowana]

THe pond will be 8x4x2 and here is the stock i was thinking:
2x motoro rays
1 florida gar
1 silver aro
1 fire eel
1 oscar
1 lima shovelnose

1)Will it work?
2)is it overstocked?
3) Would it look sick?

 

[oscar and arowana]

.

 

[gar man]

If I were you I'd make it 3' tall for extra water volume.

 

[Vmk82]

Florida Gar are known for jumping. Unless you plan on putting a lid over entire pond

 

[CanalEel]

Fire eel would get killed by Florida Gar and also escape!

Oscar would be lonely and maybe killed by Gar.

Gar and Aro would jump.