Aquarium systems test kitr a new range of test kits from aquarium systems that accurately test your pondaquarium waterr the seatest ammonia test contains approximately 40 tests for the presence of nh4 or ammonium compounds in your marine or tropical aquariumr ammonia and ammonium is generated through the breakdown of fish food and fish waste and is usually converted efficiently to nitrites and then nitrates by the nitrifying bacteria in your aquarium and filterr however a new tank that h