Which fish should i get

[Catfishbichir]

I an interested in a peacock bass and spotted gar for my tank. The trouble is i could only have one and dont know which i would get. The tankmates are a 10-12 inch ornate bichir 2 8 inch senegal bichers a full grown black ghost knife fish and several catfish from 4-6 inches

 

[dan518]

What size is the tank

 

[Catfishbichir]

Its plenty enough for both species but if they manage to grow bigger than average ill just sell it before harm it done