Ah ok thats a very good hint, I was going for rather too little than too much of the substitute.And yes, it is brown as well. Then I will try adding another dose of it, just changed the water yesterday.
How does it work with cleaning and everything? I mean, where do I leave the plant when I clean the reservoir?
Plant above looks OK I think? There are some light spots on some leaves but that might be due to the pH not being adjusted properly and bottle 1 not being dispensed much. But I dont know.