Help me decide set up of 120G-SA vs CA

[jumpin joe fish]

I have a 6' long 120G with the following

4 Clown Loaches (4")
1 gold severum (7")
1 Green Severum (5")
20 Black skirt tetras
1 Firemouth (3")
1 Pleco (8")
8 Rosey Barbs (2")

and a 4' long 90G with CA
1 Jack Dempsey (5")
1 Salvini (4")
3 Firemouths (3-5")
1 Pleco (8")

Was thinking of converting 120G to CA tank, Firemouths, Jack, Salvinis,
but I love my severums. What do you think?

 

[Mike fail]

i would think the blackskirt tetras might get eaten but im not sure

 

[se1an]

i dont think the demsey can go with the tetras and barbs and im suprized that the firemouth dont attack them