 | The advanced Tetra BF Biological filter foam is designed to be used with the Tetra external filters of the series. The highly advanced biological foam provides a large surface area for the growth of beneficial bacteria. These bacteria removes harmful substances e.g.
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 | The advanced Tetra FF Fine filter fleece is designed to be used in the Tetra external filters of the EX series. The fine filter fleece removes fine particles from the aquarium water and should be placed as the last filter medium in the filter. The Tetra FF Fine filter fleece should be changed regularly every 4 to 8 weeks.
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 | The advanced Tetra BB Bio filter balls are especially designed to be used with the Tetra external filter EX series but can also be used with all other external filters and filter systems. The Bio filter balls provide a large surface area of 62 cm² each bal for the growth of beneficial bacteria and therefore for the effectively biological filtration of the aquarium water. Tetra BB Bio filter balls can be used several times.
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 | The advanced Tetra CR Ceramic filter rings are designed for use with the Tetra external filter EX series but can also be used with all other external filters and filter systems. Hollow ceramic filter rings with high internal surface area mechanically remove large particles from the water. Ceramic filter rings distribute water flow in a number of directions ensuring that water passes evenly through the filter.
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 | The granular ultra activated Tetra CF Carbon filter medium is designed for use with the Tetra external filters EX series, but can also be used with all other external filters and filter systems.The phosphate free and pH neutral Tetra CF carbon filters harmful substances e.g. pesticides, medication residues and other unwanted chemicals out of the water. Reduces also unpleasant odours and water discolouration.
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 | The Tetra EX 500 Plus external filter complete set ensures excellent water quality for fish in aquariums with a volume of up to 100 liters. All filter materials are included, so you can start using the filter immediately. In several chambers, the water is cleaned reliably and efficiently with different filter materials by breaking down excess nutrients.
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 | ZooBest filter foam pad coarse (10 PPI) for your Tetra external filter, precisely punched and of first-class quality. For biological filtration of the aquarium water. Content: 2x filter foma pad.
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