A few members, including me, use Seachem Prime as a water dechlorinator. In my opinion Prime suits its claims pretty well, as it detoxifies ammonia, nitrite, and nitrate for 24 hours, making it less toxic to fish. I would like to note that Prime does not make them disappear from your tank, you must do water changes. It can help when trying to fight off ammonia spikes, but otherwise does not give you an excuse to skip out on water changes. Prime lasts a good while too, and so far I have had only positive results with this product. I want to know what other dechlorinators you guys use, and if you have any opinions (beneficial or not) on Prime. I would love to hear all of them, just please remember to be respectful in the discussion.