I tried and failed with Staurogen as well.Thanks @G mac . Epsom salts is to add Magnesium, which I don’t have a lot of in my tap water. My approach to water additives is very much of the pinch of/spoon of variety, inspired by @dw1305. I enjoy watching my plants grow, but don’t have the urge to get into chasing very precise numbers, or trying to grow plants which will probably struggle in my set up.
There have been casualties. I would love to grow staurogyne repens, but have never managed to do it. Maybe next tank…