Abstract: A pump and filtration system for a pond or pool. The filtration mechanism has a collapsible bag in which dirty water is forced through it from one direction in order to clean the water while cleaning water is forced through the bag in the opposite direction in order to clean the filter bag. The filter bag is positioned in a housing and separated from the walls of the housing by a mesh or screen-type member. A tapered nozzle (water jet member) is used to increase the flow of the water entering the flotation unit. A tubular member is lowered through the housing in order to clean contaminants from the collapsible filter bag. The dirty water is directed to a flower bed or the like.

Abstract: A pump and filtration system for a pond or pool. The filtration mechanism has a filter member in which water with suspended solids in it is forced through the filter member to clean the water. The filter member is positioned in a housing and separated from the walls of the housing by a screen-type separation member. A water jet member increases the flow of the water entering the housing. The filter member is cleaned and solids are flushed from the housing in a backflush procedure.

Abstract: The invention relates to aquarium filters providing improved water filtration without accelerated clogging. The present invention also relates to methods of using such filters.

Abstract: The present invention provides a long-term feed for aquatic animals, especially for fish, shrimp and invertebrates, which feed is stable for a long time, is insoluble and does not load the water chemistry in fresh and sea water and can also be used as a weekend or holiday feed for warm and cold water ornamental fish, wherein it contains 1 to 50% by weight of agar-agar.

Abstract: The present invention relates to filter devices and methods of using such devices for mechanical, chemical and biological filtration pond and/or aquarium water.

Abstract: An impeller, and impeller and rotor assembly, for use with a permanent magnet motor that provide uni-directional rotation. The impeller and rotor assembly includes an interconnecting arrangement and a locking arrangement that permit continuous rotation in a first direction and prevent continuous rotation in a second opposite direction.

Abstract: The invention relates to a homogeneous high-fat food provided in the form of food flakes, to a method for producing the same and to the use thereof for promoting the growth, the ingestion of food, and the condition of freshwater and saltwater fish and invertebrates. The inventive food flakes are used to improve resistance to stress, to prevent losses due to unfavorable keeping conditions such as high temperatures in the summer and low temperatures in the winter when keeping pond fish, and to reduce nitrogen and phosphorous excretion which promotes algae growth.

Abstract: The invention relates to aquarium filters providing improved water filtration without accelerated clogging. The present invention also relates to methods of using such filters.

Abstract: Novel flake feeds are described, especially for aquatic animals, such as fish, shrimps and invertebrates, characterized in that the flakes have a uniform form, a variable thickness and a water content of from 1 to 30%, as well as a process for the production thereof.

Abstract: A packing for animal feed is described which consists of a three-layer foil, whereby an aluminium foil is coated on one side with polyethylene terephthalate and on the opposite-lying side with chlorinated polypropylene.

Abstract: The invention relates to aquarium filters providing improved water filtration without accelerated clogging. The present invention also relates to methods of using such filters.

Abstract: A molded structure which may be placed within a tank such as an aquarium to provide separate land and water areas which are capable of providing realistic and healthy living environments for fish, amphibians and reptiles. Preferably, the structure is molded such that it simulates realistic land and water environments. For example, the water area preferably provides the cliff and cave-like areas preferred by aquatic life. On the other hand, the interface between the land and water portions is preferably sloped in portions to provide an amphibian friendly surface, while the land area may include depressions for the maintenance of plant life. In the preferred embodiment, the back and underside of the unit is hollow to incorporate a filter media, pump, heater, additional aeration device or any other such desired apparatus. In an especially preferred embodiment, small openings are provided along the base to allow water to be drawn through the gravel in front of the unit to provide additional filtration.

Abstract: Novel flake feeds are described, especially for aquatic animals, such as fish, shrimps and invertebrates, characterised in that the flakes have a uniform form, a variable thickness and a water content of from 1 to 30%, as well as a process for the production thereof.