You don't really need to feed multiple different pellets for variety, that's what the whole pellet thing is for. You're not really getting any extra or unique ingredients between each. I personally feed all my stuff the generic sera cichlid formula, with some exceptions. Sajica would appreciate a more plant based diet with easier to digest proteins, which some of the other "green" sera formulas also provide, but it isn't essential, like it would be in the case of things like nanolutea or spilurus. Stick to the frozen mysis and bloodworms though. My picks from NLS are the red one and thera a, but I prefer sera because it's like half the price, has easier to digest ingredients, and I can't smell when I accidentally left the can open.