It's like life insurance for your fish. Top quality zeolites eliminate the number one fish killer--ammonia. Cuts down disease problems. Solves overfeeding, overcrowding, and foul water conditions. Quick, easy, and disposable.Fits lift tubes of most undergravel filters.
For best results, Ammonia-X cartridges should be replaced every two to four weeks. They slip easily onto undergravel lift tubes with no need to disturb set-up.Temporary cloudiness may occur due to the fine particles found in high quality zeolites. This can be easily avoided by rinsing cartridge under tap water before placing in filter.