Compare canister filters, HOBs, skimmers and rollmats through specs, prices and the tanks using them.
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892 matching items · Most used first
FilterFluval
The Fluval U3 Underwater Filter is a compact internal filter that provides 3-stage filtration including BioMax biological rings for aquariums from 90 to 150 litres (24 to 40 US gallons); it features adjustable 3-way flow control (top output, integrated spray bar, or bottom output), a flip-top lid for quick media access, and versatile vertical or horizontal installation for fresh, marine, and reptile environments.
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FilterFluval
Six-pack of extra-thick, micro-fine polyester water polishing pads designed for Fluval canister filters; they trap micro particles and debris as water passes through, ideal for clearing cloudy water or use after tank maintenance, for freshwater and marine aquariums.
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FilterAquaReady
The AquaReady FR-1E Fluidized Media Reactor is a polished acrylic up-flow reactor compatible with carbon and GFO, rated up to 250 gallons for GFO or 150 gallons for carbon, with 1/2- or 3/4-inch hose barb inlet/outlet.
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FilterAquaReady
The AquaReady FR-S Internal Media Reactor is a compact internal media reactor designed for nano aquariums up to 50 gallons. A magnetic mount attaches it to the sump or AIO back chamber, and the included Sicce Syncra Nano pump forces water through media such as carbon, GFO, or biopellets for maximum contact time and nutrient control.
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Fluval
The Fluval FX2 is a high-performance canister filter rated for aquariums up to 175 US gallons (750 L), pumping 475 GPH through multi-stage mechanical, chemical, and biological media. Its Smart Pump technology self-primes, continuously monitors pump performance, and auto-evacuates trapped air every 12 hours.
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FilterFluval
The Fluval FX2/FX4/FX5/FX6 Bio Foam+ 2-pack provides two dense replacement foam pads for Fluval FX series high-performance canister filters. The pads serve as both mechanical and biological filter media, trapping fine particles while hosting beneficial bacteria; suitable for freshwater and saltwater aquariums.
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Fluval
The Fluval FX4 is a high-performance canister filter rated for aquariums up to 250 US gallons (1000 L), pumping 700 GPH through multi-stage mechanical, chemical, and biological media. Its Smart Pump technology self-primes, continuously monitors pump performance, and auto-evacuates trapped air every 12 hours, while a utility valve simplifies water changes.
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FilterFluval
This 3-pack of Fluval Bio Foam pads is custom-fit mechanical filter media for FX4, FX5, and FX6 canister filters, capturing large particles and debris while preventing bypass. The foam's pore size balances efficient water flow with long media life, and it is suitable for freshwater and saltwater aquariums.
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FilterPolyplab
Compact rack that holds up to four PolypLab Genesis Rocks for organized biological filtration in a sump. Included water flow deflectors tune water movement to favor aerobic bacteria for ammonia and nitrite removal or anaerobic bacteria for nitrate removal.
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FilterTwo Little Fishies
Two Little Fishies PhosBan Reactor 150 is designed to push water upwards from the bottom through the media. Works with activated carbon, GFO, and biopellets.
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Generic
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FilterBulk Reef Supply
BRS glycerin-filled pressure gauge (1-100 PSI); glycerin fill absorbs vibration and pressure spikes for longer service life and quieter operation. Comes with 1/4-inch quick-connect fittings for inline installation before the RO membrane.
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FilterMaxspect
Granular Activated Carbon Sachets (10-pack, 10 g each) designed for the Maxspect Dice Series Pico Cube 2-gallon aquarium; removes organic waste, yellow tint, and odors. Pre-packaged and pre-measured for quick, mess-free replacement.
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FilterAquaReady
The AquaReady Hang-on-Back Media Reactor is a hang-on up-flow media reactor with a 4.2-cup chamber for carbon, GFO, or biopellets, fitting aquariums at least 12.5 inches tall with up to 3/4-inch rim thickness.
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FilterAquaReady
The AquaReady HF-M Complete Filtration System is an all-in-one hang-on-back filter that combines a built-in protein skimmer, a bio media reactor chamber, and space for carbon or phosphate remover media. Designed for 20 to 60 gallon saltwater aquariums, it includes three probe holders, three dosing tube holders, cord management cut-outs, an 11-watt Shark 1.0 pump, and biological filter media.
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FilterFilter Media Cup
Filter Media Cup 7-inch high-flow flexible cup in Sea Foam White; BPA-free polypropylene one-piece design replaces filter socks. Holds filter pads, floss, carbon, GFO, or biological media; fits most round 7-inch filter sock holders.
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FilterNot specified
This 4-inch High Flow Flexible Filter Media Cup (blue) replaces filter socks; a solid one-piece cup of BPA-free polypropylene that drops into most 4-inch filter sock holders and holds filter pads, floss, carbon, GFO, or biological media. To clean, simply replace the media as needed; 6 inches tall by 4 inches diameter.
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FilterFilter Media Cup
Filter Media Cup 4-inch high-flow flexible cup in Calypso Blue; BPA-free polypropylene one-piece design with slots for higher flow. Holds filter pads, floss, carbon, GFO, or biological media; fits standard 4-inch filter sock holders.
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FilterFilter Media Cup
Filter Media Cup 4-inch high-flow flexible cup in Coral Red; BPA-free polypropylene one-piece design with slots for higher flow. Holds filter pads, floss, carbon, GFO, or biological media; fits standard 4-inch filter sock holders.
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FilterNot specified
This 4-inch High Flow Flexible Filter Media Cup (coral red) replaces filter socks; a solid one-piece cup of BPA-free polypropylene that drops into most 4-inch filter sock holders and holds filter pads, floss, carbon, GFO, or biological media. To clean, simply replace the media as needed; 6 inches tall by 4 inches diameter.
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FilterFilter Media Cup
Filter Media Cup 4-inch high-flow flexible cup in Sea Foam White; BPA-free polypropylene one-piece design with slots for higher flow. Holds filter pads, floss, carbon, GFO, or biological media; fits standard 4-inch filter sock holders.
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HM Digital
The HM Digital DM-1 Dual Inline TDS Meter monitors total dissolved solids at two points in a RODI water system (typically post-RO membrane and post-DI resin) so you can see when the membrane or DI resin needs replacing. It features a digital display, two 1/4-inch quick-connect tees with double o-rings, and comes factory calibrated (LR44 battery).
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FilterAquaReady
A hang-on-back protein skimmer from AquaReady rated for saltwater aquariums from 40 to 75 gallons, powered by a modified Sicce pump with needle-wheel impellers. Its compact design fits rims up to 3/4 inch thick and installs without a sump, with a collection cup that fully disassembles for cleaning.
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FilterAquaReady
The AquaReady HOB-PF Hang-On-Back Power Filter provides 110 gph filtration for nano aquariums up to 30 gallons, with a drop-in media basket, removable divider plate, and a Sicce Syncra NANO pump.
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FilterAquaReady
The AquaReady HOB-R Hang-On-Back Refugium grows macroalgae for nitrate and phosphate control and microfauna production, with a 110 GPH Sicce pump, viewing portal, and baffle design for tanks 20 gallons and larger.
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FilterHydor
A four-pack of white filter wool for the Hydor Prime 20 external canister filter; the non-toxic synthetic polyester fiber provides fine mechanical filtration, trapping dirt and debris.
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FilterHydor
A four-pack of white filter wool for the Hydor Prime 30 external canister filter; the non-toxic synthetic polyester fiber provides fine mechanical filtration, trapping dirt and debris.
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FilterHydor
Activated carbon filter media from Hydor designed for marine aquariums; the highly adsorbent carbon eliminates odors and polluting substances to produce odor-free, crystal-clear water.
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FilterHydor
Hydor Black Filter Sponge for Prime 10. An aquarium filtration product.
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FilterHydor
Hydor Black Sponge H30 for Prime 30. An aquarium filtration product.
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