Hi, so I just got some northfin 1mm pellets today and tried to feed it to my discus. As you said it's not easy, although with mine they eat it and spit it, because it's really hard.
So what I did was put it in garlic guard for a while and soften it, it gets a bit messier but they are some of it.
I hope they actually get used to it and eat the hard stuff, I wonder if someone else has any experience with this here. This northfin krill gold seems really good from the ingredients and would be good to have my discus eating it, even the smell is not bad.