When I bought my 2 gal, there was a little sample of Tetra food and water conditioner. I recently went to Petsmart to buy another bottle of the water conditioner and I saw a product called Tetra Easy Balance. I read about it online; apparently it reduces water changes... for up to six months! I bought some becuase in those gastly 2 gals water changes happen constantly, but does it even work? And should I wait for the nintrogen cycle to finish before adding some?