my blushing angels didnt have red around the gills when I got them either...but they do now as adults..not saying yours should or shouldnt, it was just a suggestion

....do you have to take your water out to someone else for tests? if so, it would be a good idea to get your own kit for many reasons...some are that
LFS use test strips (for easier access and faster results for customers) which are not very accurate, and they also will say things are fine or not fine to sell you more products..having your own will ALWAYS let you know where your tank stands ....an
API liquid master kit is great as it has all you need and will do 100 of tests...good luck with your angels and I hope things get better!