i think one of the steps is basically a formalin bath and the other one is a methylene blue bath. tbh if you want to not QT, but want to do something for diseases, do a 30 min 150 ppm h2o2 bath. it's super easy and humblefish thinks it will get rid of the worst diseases (velvet/flukes/brook/uronema). i've been doing 2 of them 6 days apart and then observe the fish for a month+ and it seems to be working. but it's not as proven as the standard full QT and if you're in a hurry to get fish through QT it's better to just do the standard full QT approach