Zeolite Ammonia Remover is a natural ammonia-removing mineral for use in freshwater aquariums. It works well in both newly set-up aquariums to help prevent new tank syndrome and in established aquariums to prevent sudden surges in ammonia. Comes in a 6.5 in. x 6.5 in. fully rechargeable pouch.
API Rena Filstar Canister Filters
Rinse Zeolite pouch under tap water to remove any dust. Place pouch in path of water flow in aquarium filter. Recharge pouch every 5 days until safe levels are reached. Then, recharge every 2 weeks to maintain best performance. Replace every 2 months or sooner if aquarium is heavily stocked or if ammonia is detected. To recharge: dissolve 4 tbsp of API aquarium salt in 8 oz. of warm tap water. Soak pouch for 2 hours then rinse lightly in tap water.