PE:
Crude Protein 69.5% min.
Crude Fat 8.35% min.
Crude Fiber 2.75% max.
Ash 5.5% max.
Hikari:
Crude Protein 10.5% min
Crude Fat 1.0% min
Crude Fiber 2.0% max
Moisture 85.0% max
Why there is a big difference in protein, does it make any difference at all?
Notice how Hikari's numbers show 85% moisture, while PE doesn't even list moisture at all? PE's numbers show the percentages when the water is removed, while Hikari's numbers include the water. Both have about the same percentage of protein if they get evaluated the same way.
Really? How do you know Hikari' s number includes water? doesn't make sense to evaluate the nutrition with added water to me.
PE:
Crude Protein 69.5% min.
Crude Fat 8.35% min.
Crude Fiber 2.75% max.
Ash 5.5% max.
Other 13.9%
Hikari:
Crude Protein 10.5% min 70%
Crude Fat 1.0% min 6.67%
Crude Fiber 2.0% max 13.3%
Moisture 85.0% max 0%
Other 10%
Above is more of an apples-to-apples comparison, calculating the approximate percentages with dry weight. Both brands offer comparable levels of protein. PE seems to offer a little more fat and Hikari seems to have a lot more fiber.
PE is definitely more fatty, IME. I feed both types of Mysis daily. Some of the fish refused the PE at first, but now, a lot of them prefer PE. The smaller fish prefer Hikari, but most of them seem to like both equally.