With your diet it likely makes no difference but people who feed only one thing or rarely do other stuff aside from the staple pellet I think it would be better to stick with the Carnivore/Massivore pellets.
I just compared all the other stuff in the analysis and it has way more added Vitamins as well. 2-3x more added in the Massivore. As I said with the other stuff you feed it likely makes no difference but there is a reason people use it as a staple and I'd say it is likely because of all the increased vitamins and slightly additional protein.
Massivore.
Guaranteed Analysis: Crude protein 47.0% min
Crude fat 5.0% min
Crude fiber 3.0% max
Moisture 10.0% max
Crude ash 17.0% max
Phosphorus 1.0% min
Typical Analysis: Crude protein 51.0% min
Crude fat 10.0% min
Crude fiber 0.9% max
Crude ash 14.0% max
Phosphorus 2.0% min
Added Vitamins and Minerals: Vitamin A 48,000 IU/kg (21,700 IU/lb)
Vitamin C (Stabilized) 180 mg/kg (81.8 mg/lb)
Vitamin D3 9,600 IU/kg (4,350 IU/lb)
Vitamin E 1,100 mg/kg (499 mg/lb)
Copper Sulfate 16 mg/kg (7.26 mg/lb)
Cichlid Gold
Guaranteed Analysis: Crude protein 40.0% min
Crude fat 7.0% min
Crude fiber 4.0% max
Moisture 10.0% max
Crude ash 15.0% max
Phosphorus 1.0% min
Typical Analysis: Crude protein 46.0% min
Crude fat 11.0% min
Crude fiber 0.9% max
Crude ash 9.8% max
Phosphorus 1.6% min
Added Vitamins and Minerals: Vitamin A 15,000 IU/kg (6,810 IU/lb)
Vitamin C (Stabilized) 78 mg/kg (35.4 mg/lb)
Vitamin D3 3,100 IU/kg (1,400 IU/lb)
Vitamin E 300 mg/kg (136 mg/lb)