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Biological filter media encourages beneficial bacteria growthBiological filtration helps remove harmful ammonia and nitriteInert ceramic cylinders for use in fresh or saltwater aquariums Economically priced ceramic cylinder inserts for your Hagen AquaClear Powerfilter. Extremely porous design supports a huge colony of beneficial bacteria. Offers biological filtration to remove ammonia and nitrite to help maintain a healthy aquatic environment. Safe for fresh or saltwater systems. Model Filter Model Aquarium Size 20/Mini Mini and 20 5 to 20 gallons 30/150 30 and 150 10 to 30 gallons 50/200 50 and 200 20 to 50 gallons 70/300 70 and 300 40 to 70 gallons 110/500 110 and 500 60 to 110 gallonsPlease click on "More Information" for use instructions and further details.

Quality power filter with built-in surface skimmer Automatically adjusts to water level for complete aquarium water circulation and filtrationThree-stage filtration for clean, clear aquarium waterBreakthrough concept in power filter design. Innovative, built-in skimmer adjusts to aquarium water level for effective removal of oily, organic film and scum from the surface. Three-level intake system extracts water from the surface, middle, and bottom for complete aquarium filtration. Includes 2 filter cartridges for efficient, mechanical, chemical, and biological filtration. For freshwater or saltwater aquariums. Model GPHAquarium Size Replacement Cartridge Dimensions 15 95Up to 15 gallonsBio3 Junior Cartridges6-1/2"L x 7-1/2"H x 4-3/4"D 25 125Up to 25 gallonsBio3 Cartridges8"L x 7-1/2"H x 5-1/4"D 35 160Up to 35 gallonsBio3 Cartridges8"L x 7-1/2"H x 5-1/4"D 55 225Up to 55 gallonsBio3 Cartridges13-1/2"L x 7-1/2"H x 5-1/4"D 75 350Up to 75 gallonsBio3 Cartridges13-1/2"L x 7-1/2"H x 5-1/4"DReplacement Impellers for Bio System Power Filter and Oxy Surface Skimmer also available.Please click on "More Information" for assembly instructions, cleaning directions, and troubleshooting tips.

Quality power filter with built-in surface skimmer Automatically adjusts to water level for complete aquarium water circulation and filtrationThree-stage filtration for clean, clear aquarium waterBreakthrough concept in power filter design. Innovative, built-in skimmer adjusts to aquarium water level for effective removal of oily, organic film and scum from the surface. Three-level intake system extracts water from the surface, middle, and bottom for complete aquarium filtration. Includes 2 filter cartridges for efficient, mechanical, chemical, and biological filtration. For freshwater or saltwater aquariums. Model GPHAquarium Size Replacement Cartridge Dimensions 15 95Up to 15 gallonsBio3 Junior Cartridges6-1/2"L x 7-1/2"H x 4-3/4"D 25 125Up to 25 gallonsBio3 Cartridges8"L x 7-1/2"H x 5-1/4"D 35 160Up to 35 gallonsBio3 Cartridges8"L x 7-1/2"H x 5-1/4"D 55 225Up to 55 gallonsBio3 Cartridges13-1/2"L x 7-1/2"H x 5-1/4"D 75 350Up to 75 gallonsBio3 Cartridges13-1/2"L x 7-1/2"H x 5-1/4"DReplacement Impellers for Bio System Power Filter and Oxy Surface Skimmer also available.Please click on "More Information" for assembly instructions, cleaning directions, and troubleshooting tips.

Quality power filter with built-in surface skimmer Automatically adjusts to water level for complete aquarium water circulation and filtrationThree-stage filtration for clean, clear aquarium waterBreakthrough concept in power filter design. Innovative, built-in skimmer adjusts to aquarium water level for effective removal of oily, organic film and scum from the surface. Three-level intake system extracts water from the surface, middle, and bottom for complete aquarium filtration. Includes 2 filter cartridges for efficient, mechanical, chemical, and biological filtration. For freshwater or saltwater aquariums. Model GPHAquarium Size Replacement Cartridge Dimensions 15 95Up to 15 gallonsBio3 Junior Cartridges6-1/2"L x 7-1/2"H x 4-3/4"D 25 125Up to 25 gallonsBio3 Cartridges8"L x 7-1/2"H x 5-1/4"D 35 160Up to 35 gallonsBio3 Cartridges8"L x 7-1/2"H x 5-1/4"D 55 225Up to 55 gallonsBio3 Cartridges13-1/2"L x 7-1/2"H x 5-1/4"D 75 350Up to 75 gallonsBio3 Cartridges13-1/2"L x 7-1/2"H x 5-1/4"DReplacement Impellers for Bio System Power Filter and Oxy Surface Skimmer also available.Please click on "More Information" for assembly instructions, cleaning directions, and troubleshooting tips.

Quality power filter with built-in surface skimmer Automatically adjusts to water level for complete aquarium water circulation and filtrationThree-stage filtration for clean, clear aquarium waterBreakthrough concept in power filter design. Innovative, built-in skimmer adjusts to aquarium water level for effective removal of oily, organic film and scum from the surface. Three-level intake system extracts water from the surface, middle, and bottom for complete aquarium filtration. Includes 2 filter cartridges for efficient, mechanical, chemical, and biological filtration. For freshwater or saltwater aquariums. Model GPHAquarium Size Replacement Cartridge Dimensions 15 95Up to 15 gallonsBio3 Junior Cartridges6-1/2"L x 7-1/2"H x 4-3/4"D 25 125Up to 25 gallonsBio3 Cartridges8"L x 7-1/2"H x 5-1/4"D 35 160Up to 35 gallonsBio3 Cartridges8"L x 7-1/2"H x 5-1/4"D 55 225Up to 55 gallonsBio3 Cartridges13-1/2"L x 7-1/2"H x 5-1/4"D 75 350Up to 75 gallonsBio3 Cartridges13-1/2"L x 7-1/2"H x 5-1/4"DReplacement Impellers for Bio System Power Filter and Oxy Surface Skimmer also available.Please click on "More Information" for assembly instructions, cleaning directions, and troubleshooting tips.

Quality power filter with built-in surface skimmer Automatically adjusts to water level for complete aquarium water circulation and filtrationThree-stage filtration for clean, clear aquarium waterBreakthrough concept in power filter design. Innovative, built-in skimmer adjusts to aquarium water level for effective removal of oily, organic film and scum from the surface. Three-level intake system extracts water from the surface, middle, and bottom for complete aquarium filtration. Includes 2 filter cartridges for efficient, mechanical, chemical, and biological filtration. For freshwater or saltwater aquariums. Model GPHAquarium Size Replacement Cartridge Dimensions 15 95Up to 15 gallonsBio3 Junior Cartridges6-1/2"L x 7-1/2"H x 4-3/4"D 25 125Up to 25 gallonsBio3 Cartridges8"L x 7-1/2"H x 5-1/4"D 35 160Up to 35 gallonsBio3 Cartridges8"L x 7-1/2"H x 5-1/4"D 55 225Up to 55 gallonsBio3 Cartridges13-1/2"L x 7-1/2"H x 5-1/4"D 75 350Up to 75 gallonsBio3 Cartridges13-1/2"L x 7-1/2"H x 5-1/4"DReplacement Impellers for Bio System Power Filter and Oxy Surface Skimmer also available.Please click on "More Information" for assembly instructions, cleaning directions, and troubleshooting tips.

Quality biological filter media for aquarium canister filtersMaintains ideal conditions to support large colonies of beneficial bacteriaEfficient biological filtration breaks down harmful aquarium ammonia and nitriteSpecially designed biological filtration media for optimum biological filtration. Made of porous polymer material, FilStar Bio-Chem Stars provide a substrate for the optimum growth of beneficial bacteria, including nitrifying bacteria that convert toxic ammonia and nitrite. Its unique structure also maximizes oxygen and water transfer to keep bacterial colonies healthy and active. Use Bio-Chem Stars for fresh or saltwater aquariums. 4 stars treat 20 gallons. 20 count.Please click on "More Information" for directions for use.

Chemical Filtration Media. Composed Of Two Organic Scavenger Resins And Two Ion-Exchange Resins. Also Contains A High Porosity Activated Carbon. Filtes Water To A Level Not Achieved By Carbon Alone.

Combination chemical filter media for fresh and saltwater aquariumsRemoves dissolved organic waste and other aquarium pollutantsUse with FilStar or other canister filters for clean, clear aquarium waterPremium chemical filter media for effective removal of dissolved organic waste. FilStar Bio-Chem Zorb is composed of two organic scavenger resins and two ion-exchange resins, plus high-porosity activated carbon. Removes synthetic chemicals, organic pollutants, and metabolic byproducts from both fresh and saltwater aquariums. Makes water crystal clear by removing aquarium pollutants that cause discoloration and foul odors. Bio-Chem Zorb is also great for removing aquarium medications. Also removes toxic, heavy metals in freshwater. Use one pouch per every 55 gallons of aquarium water. Change every 1 - 3 months for best results.Please click on "More Information" for directions for use.

Combination chemical filter media for fresh and saltwater aquariumsRemoves dissolved organic waste and other aquarium pollutantsUse with FilStar or other canister filters for clean, clear aquarium waterPremium chemical filter media for effective removal of dissolved organic waste. FilStar Bio-Chem Zorb is composed of two organic scavenger resins and two ion-exchange resins, plus high-porosity activated carbon. Removes synthetic chemicals, organic pollutants, and metabolic byproducts from both fresh and saltwater aquariums. Makes water crystal clear by removing aquarium pollutants that cause discoloration and foul odors. Bio-Chem Zorb is also great for removing aquarium medications. Also removes toxic, heavy metals in freshwater. Use one pouch per every 55 gallons of aquarium water. Change every 1 - 3 months for best results.Please click on "More Information" for directions for use.