Amazon.com Penguin Power Filters: Easy and Effective FiltrationPenguin BIO-Wheel Power Filters deliver effective, easy, 3-stage aquarium filtration-without the hassle of air pumps, valves, and tubing or air stones. Convenient Rite-Size Filter Cartridges come ready to use with each filter . to mechanically and chemically remove waste, discoloration, and odors. Biological filtration is provided by the revolutionary BIO-Wheel-proven best at removing toxic ammonia and nitrite.Additional FeaturesTwo-Piece Vented Cover: Designed for convenient filter cartridge access and quiet operationAdjustable Mid-Level Intake: Attaches to the intake tube for improved water circulation3-Stage FiltrationStage 1: Mechanical FiltrationAt this stage, the Penguin Rite-Size Filter Cartridge floss screens out dirt and debris and utilizes a patented ribbed back for maximum water to carbon contact.Stage 2: Chemical FiltrationBlack Diamond Premium Activated carbon works to remove odors, discoloration, and impurities.Stage 3: Biological FiltrationThe patented BIO-Wheel eliminates toxic ammonia and nitrite on contact and is designed to grow the beneficial bacteria needed for biological filtration. The BIO-Wheel now features 50% more surface area.Pick the Right Filter for Your Size Aquarium Certified Flow Rate Aquarium Size Penguin 100 100 GPH Up to 20 gallons Penguin 150 150 GPH Up to 30 gallons Penguin 200 200 GPH Up to 50 gallons Penguin 350 350 GPH Up to 70 gallons Start-Up and MaintenanceThe Penguin Power Filter requires virtually no set-up, making it perfect for any fish lover. Simply follow the manual in connecting the parts and then hang the filter onto the back of your tank. Be sure to prime your filter with aquarium water before you plug it in. Once you have set-up your filter you can adjust the water flow by using the mid-level strainer. After the initial set- up maintenance of this filter is quite easy. Simply remove and replace the filter cartridge after approximately one month and clean the filter as needed. It is also important to maintain an adequate water level in your tank to insure your Penguin Power filter runs quietly and efficiently.Find the Rite-Size Filter for YouEach Penguin Power Filter comes with one Marineland Rite-Size Filter Cartridge. Take a look below to see which cartridge is correct for your filter and ensure proper maintenance. Rite-Size A Cartridge Rite-Size B Cartridge Rite-Size C Cartridge Fits Penguin 100 and Mini Power Filters Fits Penguin 125, 150 Power Filters Fits Penguin 170, 200, 330, 350 Power Filters Tetra Water CareTetra sets the bar high in water care treatment and maintenance with a four-step, color-coded system. From aquarium start-up and routine maintenance, to trouble shooting solutions and testing, Tetra offers everything you need to keep your aquarium water healthy. Take a look at the chart below to see the full line of Tetra water care treatments and testing supplies.Start-Up New Aquarium? Tetra SafeStart allows you to safely add fish to your tank immediately. Maintenance Use AquaSafe whenever adding water to neutralize chlorine and heavy metals. Use EasyBalance weekly to keep your water chemistry balanced. Solutions High ammonia? Use AmmoniaSafe liquid or tablets. Cloudy water? Clear it up with WaterClarifier Liquid or Tablets. Algae issues? Keep in check with AlgaeControl liquid or No More Algae tablets. Testing Tetra EasyStrips make regular water testing a breeze. Product Description Marineland brand is the world?s leading brand of innovative equipment and environments for consumers wishing to create the ultimate aquatic showcase. Committed to fishkeeping success for over 40 years, the brand is the professional?s choice for commercial display systems and scientific research. Whatever you?re passionate about - freshwater or saltwater, big or small, beauty or science - make your aquarium your own. Marineland Penguin Bio-Wheel Power Filter delivers easy, three-stage filtration. This power