Karen, >Put your dechlorinator directly into the tank before you add the >tap water. If you pH is significantly different, change smaller >amounts of water more often. On the directions of my dechlorinator, and most others that I have used, it states not to add it directly to the aquarium water, have you seen this, and have you had any ill effects doing it this way? Marque APD - ANGFA(NSW) - Sydney