I thought it was fluoride that was added to tap water? Maybe it's the same as florine, I really don't know. I know that it is common in the United States. That's why everyone has shining white teeth

mind you, there is controversy to whether it actually is good for you. I don't see why we should be forced to consume something when we might not actually want it. Whichever we are talking about, I believe it is dangerous to both fish and the biological filter. I can't see anything on the bottle at mentions removing fluoride, it certainly is something to think about if they are going to start adding it to our water. I believe that letting the water standstill for a couple of days reduces these elements considerably. However, that wouldn't help me much because I take the water straight from my tap. I think we'll have to look into it and find out whether the water conditioners do indeed remove fluoride. Some of the guys in the States would know, they obviously have this problem.