From my understanding, the first listed item is the base, and the less of the ingrediant, the lower it is on that list.
Therefore the list has some differences, for example mine has less crude fat than what you use, and certain ones although containing alot of the same vitamins, dont have as much as others. Another part of the reason however I mix, is it saves on cost (around here the gold is always more than the staple, and the excel i got for half off, all of which is what i use)...I mix bc they seem to prefer the gold, however by mixing, its hard for them to be as picky and it all gets eaten.
Not all brands are equal imo, as my fishs' color started to come out more when I switched to hikari.
It works for me, and that plus water changes I think attributes alot to why my oscar does not have hith.