http://forum.aqua-fish.net/ A forum devoted to aquarium fish, plants, techniques and fish keeping as a whole. en http://forum.aqua-fish.net/?topic=hello-i-m-allen#1 Cannot clear my marine Aquarium of Ammonia despite several water changes during the past week, cleaned all ornaments plastic plants, isnsrted Polyfilter and added Nutrafin Cycle as prescribed, 3 doses, ammonia level reads 1.2 ALLEN1943 2009-03-04 http://forum.aqua-fish.net/?topic=hello-i-m-allen#2 By doing lots of water changes you have probably removed the cycle as well. Are there any fish in your tank? mickey 2009-03-04