{"product_id":"sicce-shark-pro-nano-320-internal-filter","title":"SICCE Shark PRO Nano 320 Internal Aquarium Filter – 15 to 25 Gallons","description":"\u003cp\u003eThe SICCE Shark PRO Nano 320 Internal Filter delivers compact, customizable filtration for freshwater aquariums between approximately 15 and 25 gallons. With a maximum flow rate of 85 GPH, adjustable output, modular filter cartridges, and several included flow accessories, it provides flexible water movement without taking up the space required by a larger internal filter.\u003c\/p\u003e\n\u003cp\u003eThe Shark PRO Nano 320 combines mechanical, biological, and chemical filtration in a slim, tool-free design. It includes two mechanical filter sponges, one biological sponge, and one activated-carbon sponge, giving customers a complete multi-stage filtration system directly out of the box.\u003c\/p\u003e\n\u003cp\u003eA submerged magnetic mounting system secures the filter to aquarium glass up to approximately 0.25 inch thick. The modular cartridges can be removed independently for cleaning or media replacement while the main filter body remains in position.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for 15–25 Gallons:\u003c\/strong\u003e Suitable for lightly to moderately stocked freshwater aquariums\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e85 GPH Maximum Flow:\u003c\/strong\u003e Provides efficient circulation in nano and small aquariums\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Flow:\u003c\/strong\u003e Side control allows the water output to be reduced or increased\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Filtration:\u003c\/strong\u003e Supports mechanical, biological, and chemical filtration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular Filter Cartridges:\u003c\/strong\u003e Individual modules can be removed and serviced without tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Mounting System:\u003c\/strong\u003e Secures the filter without conventional internal suction-cup mounting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Output Options:\u003c\/strong\u003e Includes a standard outlet, Venturi aeration, directional deflector, and spray bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable Design:\u003c\/strong\u003e Optional additional cartridges can increase filtration capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Profile:\u003c\/strong\u003e Fits neatly into a corner of smaller aquariums\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorizontal Installation Option:\u003c\/strong\u003e May be configured for turtle and shallow-water setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e SICCE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Shark PRO Nano 320\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Type:\u003c\/strong\u003e Fully submersible internal aquarium filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Aquarium Capacity:\u003c\/strong\u003e 15–25 US gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetric Aquarium Capacity:\u003c\/strong\u003e 60–100 liters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Flow Rate:\u003c\/strong\u003e 320 L\/h \/ 85 GPH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 6 watts for the 110–120V U.S. model\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Control:\u003c\/strong\u003e Adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Glass Thickness:\u003c\/strong\u003e Approximately 0.25 inch \/ 6 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Cable Length:\u003c\/strong\u003e Approximately 7.5 feet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Internal, fully submerged\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance:\u003c\/strong\u003e Tool-free modular cartridge removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIncluded Filter Media\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo Mechanical Sponges:\u003c\/strong\u003e Trap suspended debris and particles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne Biological Sponge:\u003c\/strong\u003e Provides surface area for beneficial nitrifying bacteria\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne Activated-Carbon Sponge:\u003c\/strong\u003e Provides optional chemical filtration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe biological sponge is included specifically with the Shark PRO Nano 320 configuration. The smaller Shark PRO Nano 250 has a different included-media arrangement.\u003c\/p\u003e\n\u003ch3\u003eIncluded Flow Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStandard open-flow outlet\u003c\/li\u003e\n\u003cli\u003eVenturi aeration attachment\u003c\/li\u003e\n\u003cli\u003eAir tube with adjustable silencer\u003c\/li\u003e\n\u003cli\u003eRotating directional deflector\u003c\/li\u003e\n\u003cli\u003eSpray bar\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese accessories allow the filter output to be adapted for different aquarium layouts and livestock requirements.\u003c\/p\u003e\n\u003ch3\u003eBest Used For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFreshwater aquariums from 15 to 25 gallons\u003c\/li\u003e\n\u003cli\u003eLightly to moderately stocked community aquariums\u003c\/li\u003e\n\u003cli\u003ePlanted aquariums\u003c\/li\u003e\n\u003cli\u003eBetta community setups with reduced flow\u003c\/li\u003e\n\u003cli\u003eShrimp aquariums with appropriate intake protection\u003c\/li\u003e\n\u003cli\u003eSmall cichlid grow-out tanks\u003c\/li\u003e\n\u003cli\u003eQuarantine and observation aquariums\u003c\/li\u003e\n\u003cli\u003eTurtle tanks and shallow-water setups\u003c\/li\u003e\n\u003cli\u003eAquariums where external plumbing is not practical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical Filtration\u003c\/h3\u003e\n\u003cp\u003eThe two mechanical sponges capture suspended debris such as uneaten food, fish waste, loose plant material, and other visible particles.\u003c\/p\u003e\n\u003cp\u003eUsing mechanical media on both sides of the filter increases the filtration surface and allows water to enter through a broad area. This helps distribute intake flow rather than concentrating it through one small opening.\u003c\/p\u003e\n\u003cp\u003eMechanical sponges should be cleaned when debris buildup reduces water flow. Rinse them in removed aquarium water or conditioned water rather than untreated chlorinated tap water when preserving beneficial bacteria is important.\u003c\/p\u003e\n\u003ch3\u003eBiological Filtration\u003c\/h3\u003e\n\u003cp\u003eThe included biological sponge supplies porous surface area where beneficial nitrifying bacteria can colonize. These bacteria help convert toxic ammonia into nitrite and then into less toxic nitrate.\u003c\/p\u003e\n\u003cp\u003eThe biological sponge does not instantly cycle a new aquarium. A new filter must be given time to develop a mature bacterial population, or established media must be transferred from a healthy aquarium.\u003c\/p\u003e\n\u003cp\u003eAvoid replacing all filter media at the same time. Doing so may remove a substantial portion of the aquarium’s biological filtration.\u003c\/p\u003e\n\u003ch3\u003eChemical Filtration\u003c\/h3\u003e\n\u003cp\u003eThe activated-carbon sponge provides optional chemical filtration. Activated carbon can help remove discoloration, odors, and certain dissolved organic compounds.\u003c\/p\u003e\n\u003cp\u003eCarbon is not required for every aquarium at all times. The carbon sponge may be removed when treating the aquarium with medications that would otherwise be adsorbed by activated carbon.\u003c\/p\u003e\n\u003cp\u003eAfter treatment, fresh carbon may be installed when appropriate to help remove residual medication according to the medication manufacturer’s directions.\u003c\/p\u003e\n\u003ch3\u003eAdjustable Water Flow\u003c\/h3\u003e\n\u003cp\u003eThe Shark PRO Nano 320 includes a side-mounted flow regulator that allows the output to be adjusted for the aquarium’s inhabitants and layout.\u003c\/p\u003e\n\u003cp\u003eUse a reduced setting for bettas, long-finned fish, delicate plants, or animals that prefer gentler circulation. Increase the flow when stronger circulation, surface movement, or debris transport is required.\u003c\/p\u003e\n\u003cp\u003eReducing flow does not eliminate the need to keep the filter media clean. A clogged sponge can restrict circulation beyond the selected setting.\u003c\/p\u003e\n\u003ch3\u003eFour Water-Flow Configurations\u003c\/h3\u003e\n\u003cp\u003eThe included accessories provide several ways to configure the output:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen Outlet:\u003c\/strong\u003e Produces a direct stream of water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVenturi Attachment:\u003c\/strong\u003e Draws air into the output to increase visible aeration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVenturi with Directional Deflector:\u003c\/strong\u003e Adds aeration while directing the water flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpray Bar:\u003c\/strong\u003e Distributes output across several smaller openings for a broader, gentler current\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe directional deflector may also be used without the Venturi attachment.\u003c\/p\u003e\n\u003ch3\u003eMagnetic Mounting System\u003c\/h3\u003e\n\u003cp\u003eThe Shark PRO Nano attaches to the aquarium using a magnetic holder. One portion remains with the submerged filter while the external magnet is carefully positioned on the outside of the aquarium glass.\u003c\/p\u003e\n\u003cp\u003eThe magnetic holder is intended for aquarium walls up to approximately 6 mm, or 0.25 inch, thick. It should not be assumed to work securely through thicker glass or acrylic panels.\u003c\/p\u003e\n\u003cp\u003eKeep fingers clear when bringing the two magnetic sections together. Strong magnets can snap together suddenly.\u003c\/p\u003e\n\u003ch3\u003eModular Filter Design\u003c\/h3\u003e\n\u003cp\u003eEach filter-media section functions as an independent module. This allows one cartridge to be removed for service while the other remains attached to the operating filter.\u003c\/p\u003e\n\u003cp\u003eThe tool-free design simplifies routine maintenance and reduces the need to remove the entire filter from the aquarium.\u003c\/p\u003e\n\u003cp\u003eOptional cartridges may be added to expand mechanical or chemical filtration capacity, provided the installation remains appropriate for the aquarium’s available space and glass thickness.\u003c\/p\u003e\n\u003ch3\u003eInstallation Directions\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eInspect the filter, electrical cord, magnetic mount, cartridges, and accessories.\u003c\/li\u003e\n\u003cli\u003eSelect the desired output configuration before installation.\u003c\/li\u003e\n\u003cli\u003ePlace the assembled filter inside the aquarium.\u003c\/li\u003e\n\u003cli\u003eCarefully align the external magnet with the submerged magnetic holder.\u003c\/li\u003e\n\u003cli\u003eConfirm that the filter is secure and fully submerged.\u003c\/li\u003e\n\u003cli\u003eAdjust the directional outlet or spray bar as needed.\u003c\/li\u003e\n\u003cli\u003eCreate a drip loop in the power cord below the electrical outlet.\u003c\/li\u003e\n\u003cli\u003eConnect the filter to power.\u003c\/li\u003e\n\u003cli\u003eAdjust the water flow using the side regulator.\u003c\/li\u003e\n\u003cli\u003eObserve the aquarium to confirm suitable circulation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eAlways review the included SICCE instruction manual before installation and operation.\u003c\/p\u003e\n\u003ch3\u003eFilter Placement\u003c\/h3\u003e\n\u003cp\u003eInstall the filter where it can create circulation across the aquarium without directly blasting delicate fish, shrimp, or plants.\u003c\/p\u003e\n\u003cp\u003ePositioning the unit near one rear corner can help conceal it while allowing water to move across the length of the tank.\u003c\/p\u003e\n\u003cp\u003eKeep sufficient space around the filter intakes. Plants, substrate, decorations, and aquarium walls should not obstruct water entry.\u003c\/p\u003e\n\u003ch3\u003eIs It Suitable for Shrimp?\u003c\/h3\u003e\n\u003cp\u003eThe Shark PRO Nano 320 can be used in shrimp aquariums, but it should not automatically be described as completely baby-shrimp-safe.\u003c\/p\u003e\n\u003cp\u003eAdult shrimp may generally use the broad sponge intake safely, but extremely small shrimplets could potentially enter openings depending on their size and the filter configuration.\u003c\/p\u003e\n\u003cp\u003eInspect the intake carefully and add finer prefilter material when necessary. Any added material must be monitored and cleaned regularly to prevent excessive flow restriction.\u003c\/p\u003e\n\u003ch3\u003eUse with Bettas and Delicate Fish\u003c\/h3\u003e\n\u003cp\u003eThe adjustable flow and included spray bar make the Shark PRO Nano adaptable for fish that prefer gentler circulation.\u003c\/p\u003e\n\u003cp\u003eBegin at a low setting and direct the output toward an aquarium wall or across the surface. Watch the fish for signs that the current is too strong, such as persistent struggling, hiding, or difficulty resting.\u003c\/p\u003e\n\u003cp\u003eThe filter’s official 15–25 gallon rating means it is not intended for very small betta bowls or pico tanks.\u003c\/p\u003e\n\u003ch3\u003eUse in Planted Aquariums\u003c\/h3\u003e\n\u003cp\u003eThe compact profile helps preserve swimming and planting space in smaller aquascapes. The directional outlet can be used to circulate nutrients and carbon dioxide throughout the aquarium.\u003c\/p\u003e\n\u003cp\u003eAvoid aiming a strong concentrated stream directly at delicate stems or newly planted carpeting species.\u003c\/p\u003e\n\u003cp\u003eThe filter does not supply fertilizer, carbon dioxide, or lighting. These must be managed separately according to the needs of the plants.\u003c\/p\u003e\n\u003ch3\u003eUse in Turtle Tanks\u003c\/h3\u003e\n\u003cp\u003eSICCE allows horizontal positioning of the Shark PRO Nano for turtle and shallow-water applications. The filter must remain installed according to the manufacturer’s minimum-water-level and submersion requirements.\u003c\/p\u003e\n\u003cp\u003eTurtles generally produce more waste than fish, so the published aquarium capacity may need to be reduced in heavily stocked or high-waste setups.\u003c\/p\u003e\n\u003cp\u003eFrequent sponge cleaning and regular water changes may be necessary.\u003c\/p\u003e\n\u003ch3\u003eFreshwater and Saltwater Use\u003c\/h3\u003e\n\u003cp\u003eThe Shark PRO Nano may be used in suitable freshwater and marine aquariums. Its official aquarium-volume rating is based on lightly to moderately stocked freshwater systems.\u003c\/p\u003e\n\u003cp\u003eMarine systems may require additional circulation, biological media, protein skimming, or other filtration depending on livestock and waste production.\u003c\/p\u003e\n\u003cp\u003eSaltwater users should inspect the impeller, housing, and magnetic mount regularly for salt and mineral buildup.\u003c\/p\u003e\n\u003ch3\u003eCleaning the Filter\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eUnplug the filter before placing hands in the aquarium.\u003c\/li\u003e\n\u003cli\u003eRemove one filter module at a time if preserving biological filtration.\u003c\/li\u003e\n\u003cli\u003eRinse reusable sponges in removed aquarium water or conditioned water.\u003c\/li\u003e\n\u003cli\u003eReplace exhausted chemical media when required.\u003c\/li\u003e\n\u003cli\u003eInspect the central water passage for accumulated debris.\u003c\/li\u003e\n\u003cli\u003eClean the spray-bar openings and flow accessories.\u003c\/li\u003e\n\u003cli\u003eInspect and clean the impeller and rotor chamber periodically.\u003c\/li\u003e\n\u003cli\u003eReassemble the modules securely.\u003c\/li\u003e\n\u003cli\u003eRestart the filter and confirm normal water flow.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eCleaning the Spray Bar\u003c\/h3\u003e\n\u003cp\u003eInspect the spray-bar openings regularly. Algae, biofilm, and debris can clog the small holes and significantly reduce filter performance.\u003c\/p\u003e\n\u003cp\u003eRemove the spray bar and clear each opening using a soft aquarium-safe brush. Do not enlarge the holes with sharp tools.\u003c\/p\u003e\n\u003ch3\u003eCleaning Frequency\u003c\/h3\u003e\n\u003cp\u003eThere is no single maintenance schedule suitable for every aquarium. Cleaning frequency depends on stocking, feeding, plant debris, substrate, and filter-media configuration.\u003c\/p\u003e\n\u003cp\u003eInspect the filter weekly at first. Service the mechanical sponges when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWater flow noticeably decreases\u003c\/li\u003e\n\u003cli\u003eDebris becomes visible on the sponge\u003c\/li\u003e\n\u003cli\u003eThe spray bar produces uneven output\u003c\/li\u003e\n\u003cli\u003eThe filter becomes noisier than normal\u003c\/li\u003e\n\u003cli\u003eWaste begins bypassing the media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAvoid sterilizing every sponge and cartridge simultaneously.\u003c\/p\u003e\n\u003ch3\u003eQuiet Operation\u003c\/h3\u003e\n\u003cp\u003eSICCE designs the Shark PRO Nano for smooth submersible operation. However, “silent” or “whisper-quiet” performance can vary according to installation, debris buildup, trapped air, and contact with aquarium glass or decorations.\u003c\/p\u003e\n\u003cp\u003eIf abnormal noise develops:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the filter is fully submerged\u003c\/li\u003e\n\u003cli\u003eCheck that the cartridges are installed correctly\u003c\/li\u003e\n\u003cli\u003eRemove trapped air\u003c\/li\u003e\n\u003cli\u003eClean the impeller and rotor chamber\u003c\/li\u003e\n\u003cli\u003eConfirm the filter is not vibrating against décor\u003c\/li\u003e\n\u003cli\u003eInspect the spray bar and output for blockages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Aquarium Filtration Note\u003c\/h3\u003e\n\u003cp\u003eThe Shark PRO Nano 320 is rated for 15–25 gallons in lightly to moderately stocked freshwater aquariums. Heavy stocking, large messy fish, turtles, or substantial feeding may require additional filtration or a larger filter.\u003c\/p\u003e\n\u003cp\u003eA filter does not replace aquarium cycling, water changes, gravel cleaning, appropriate stocking, or regular water testing.\u003c\/p\u003e\n\u003cp\u003eContinue monitoring ammonia, nitrite, nitrate, temperature, and other parameters appropriate for the aquarium.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size aquarium is the SICCE Shark PRO Nano 320 designed for?\u003c\/strong\u003e\u003cbr\u003eSICCE rates it for lightly to moderately stocked freshwater aquariums from approximately 15 to 25 gallons.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it only suitable for tanks up to 20 gallons?\u003c\/strong\u003e\u003cbr\u003eNo. Twenty gallons falls within its range, but SICCE’s published rating is 15–25 gallons.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is its maximum flow rate?\u003c\/strong\u003e\u003cbr\u003eThe maximum flow rate is approximately 320 liters per hour, or 85 GPH.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much electricity does it use?\u003c\/strong\u003e\u003cbr\u003eThe 110–120V U.S. model is rated at 6 watts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the flow adjustable?\u003c\/strong\u003e\u003cbr\u003eYes. A side-mounted control allows the output to be adjusted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat filter media are included?\u003c\/strong\u003e\u003cbr\u003eThe Shark PRO Nano 320 includes two mechanical sponges, one biological sponge, and one activated-carbon sponge.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it provide biological filtration?\u003c\/strong\u003e\u003cbr\u003eYes. The included biological sponge supplies surface area for beneficial bacteria.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan chemical media be used?\u003c\/strong\u003e\u003cbr\u003eYes. An activated-carbon sponge is included, and optional modular cartridges can expand chemical filtration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe for shrimp?\u003c\/strong\u003e\u003cbr\u003eIt can be used in shrimp tanks, but very small shrimplets may require additional fine intake protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for bettas?\u003c\/strong\u003e\u003cbr\u003eYes, in an appropriately sized aquarium. Reduce the flow and use the spray bar or directional outlet when gentler movement is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it use suction cups?\u003c\/strong\u003e\u003cbr\u003eThe main mounting system is magnetic and is rated for aquarium glass up to approximately 0.25 inch thick.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the magnetic system release the media cartridges?\u003c\/strong\u003e\u003cbr\u003eNo. The magnetic system secures the filter to the aquarium. The filter cartridges use a separate modular, tool-free design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the filter be positioned horizontally?\u003c\/strong\u003e\u003cbr\u003eYes. SICCE provides a horizontal configuration for turtle and shallow-water applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include a spray bar?\u003c\/strong\u003e\u003cbr\u003eYes. A spray bar is included along with a directional deflector and Venturi aeration accessories.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it add air to the aquarium?\u003c\/strong\u003e\u003cbr\u003eYes. The included Venturi attachment can draw air into the water output when properly installed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in saltwater?\u003c\/strong\u003e\u003cbr\u003eYes, although the published tank-size rating is based on lightly to moderately stocked freshwater aquariums.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should the media be cleaned?\u003c\/strong\u003e\u003cbr\u003eClean it when debris accumulation reduces flow. The required schedule depends on stocking and feeding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould all sponges be replaced at once?\u003c\/strong\u003e\u003cbr\u003eNo. Stagger cleaning and replacement whenever possible to preserve beneficial bacteria.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the filter make aquarium water crystal clear?\u003c\/strong\u003e\u003cbr\u003eProperly maintained mechanical and chemical media can improve water clarity, but results also depend on stocking, feeding, maintenance, and overall water quality.\u003c\/p\u003e\n\u003ch3\u003eAvailable at Tropical Treasures Wyo\u003c\/h3\u003e\n\u003cp\u003eThe SICCE Shark PRO Nano 320 Internal Filter delivers adjustable 85 GPH circulation and modular mechanical, biological, and chemical filtration for freshwater aquariums between approximately 15 and 25 gallons.\u003c\/p\u003e\n\u003cp\u003eVisit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop SICCE internal filters, replacement sponges, aquarium media, circulation pumps, nano-aquarium equipment, and water-quality supplies.\u003c\/p\u003e","brand":"Tropical Treasures Wyo LLC","offers":[{"title":"Default Title","offer_id":52277259862229,"sku":null,"price":44.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4545\/8133\/files\/SI98146-2T.png?v=1785068272","url":"https:\/\/tropicaltreasureswyo.com\/products\/sicce-shark-pro-nano-320-internal-filter","provider":"Tropical Treasures Wyo LLC","version":"1.0","type":"link"}