1 Chemicals for use in aquariums, namely, water treatment chemicals and biologically active enzymes and microorganisms for use as water conditioners and water purifiers for water treatment purposes in-door aquaria and garden ponds; chemicals for use in aquariums, namely, activated carbon and zeolite for water treatment purposes used for aquarium filtration; chemicals for use in aquariums, namely, mixture of activated carbon and zeolite for water treatment purposes used for aquarium filtration; chemical aquarium water conditioners; chemicals for use in aquariums; water softening chemicals; water softening preparations, namely, decalcifiers for use in indoor aquaria, terraria and garden ponds; chemicals for use in aquariums, namely, preparations containing bacteria for water treatment purposes for use in aquariums and garden ponds for non-medical and non-veterinary use; chemically treated nonmedical test strips for aquarium, pond and fountain maintenance; chemically treated nonmedical test strips for testing water in indoor aquaria, garden ponds and terraria; chemical preparations for increasing the pH and alkalinity of water used in aquariums; synthetic sea salt composition for aquarium and other marine and biological use; Chlorine removal agent for aquarium use; fertilizers for water plants, in particular for use in aquariums.