Everyone has their favorite conditioners and that's not what this thread is about. I have been on the Novalek - Kordon website it is very informative, especially for newbies. It talks about fish pheromones that kill other fish, "singing fish", how fish communicate, stress, setting up, etc. I just ordered a test kit, cuz I'm wondering why my nitrates are always high no matter what I do. Could be I'm using wrong test kits, they talk about too, of course, they sell their own...