I have researched fish food ingredients and nutrition quite heavily. If you are well knowledgeable on the subject, you would know Hikari is no where near the quality of New Life Spectrum foods, doesn't matter if they have a fancy bag, design or "premium" price tag. The only decent food Hikari has is their Bio-Gold series, the rest are pretty much on par with the cheapest low quality food brands. New Life Spectrum line of foods are pretty much the highest quality on the market.
No, I don't have any affiliation with ANY company, just pointing out the facts. If you research enough, you would come to the same conclusion. Sorry, if I am coming off as harsh, I don't mean to be
Oscarfish has a great write up that does a general/basic break down on how to judge foods. Definitely recommend anyone to have a read through to get a better understanding
Fish Food Reviews