I was getting ready to order from Wag.com, looking at purchasing Orijen 6 Fish and Regional Red and noticed there are 2 different options for each. Orijen 6 Fish and Orijen 6 Fish 80/20, Orijen Regional Red and Orijen Regional Red 75/25. The ingredient list for each is somewhat different, it’s not clear to me what the real difference is, any insight would be greatly appreciated. Thank you.