Nitra Zorb is a blend of natural
synthetic ion-exchange resins that remove ammonia, nitrite and nitrate in
freshwater aquariums. When used in new aquariums, Nitra-Zorb controls the level
of toxic ammonia and nitrite during the initial development of the biological
filter. In established aquariums, it helps control sudden surges in ammonia and
nitrite caused by the addition of new fish, or anytime ammonia or nitrite is
detected. Comes in a fully rechargeable 6 1/2" x 6 1/2" pouch.
