Do you actually match your fish food's protein percentage to the species you keep?
I've noticed that a lot of aquarium foods advertise "high protein" as if it's automatically better.
But different fish have different nutritional needs.
For example:
Herbivores generally need lower protein.
Carnivores naturally require much higher levels.
Do you pay attention to protein percentages when buying fish food, or do you mostly stick with trusted brands?
I'd love to hear what experienced hobbyists look for.