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Find the gear behind the community's tanks.
Tanks, stands, lids
Canister filters, HOBs, protein skimmers, rollmats
Planted LEDs, high-actinic coral LEDs
Heaters, chillers, electronic controllers
Return pumps, wavemakers, gyres
Aquasoils, sands, dry reef rock, driftwood
Conditioners, RODI systems, marine salt mixes
Plant fertilizers, liquid CO₂, reef dosing pumps, calcium & alkalinity
Tools, food, testing, and the finishing touches
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Chosen by aquarists
5,380 matching items · Most used first
FilterFluval
Fluval FX6 high-performance canister filter for aquariums up to 400 gallons; 925 GPH, 43W, with 1.5 gallons of media capacity. Features SMART PUMP auto start/stop, multi-stage filtration, and a utility valve for easy water changes; media included.
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FilterFluval
A maintenance kit for the FX6 canister filter. Use with the matching Fluval filter model.
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FilterFluval
A coarse filter pad replacement for the Fluval Kühl Microscaping Aquarium Kit; the pad provides coarse mechanical filtration, trapping larger particles and debris, and fits into the filter's cartridge frame.
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FilterFluval
A fine filter pad replacement for the Fluval Kühl Microscaping Aquarium Kit; the fine pad with carbon and ammonia remover provides fine mechanical and chemical filtration, polishing the water of the nano aquarium.
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FilterFluval
A replacement filter cartridge designed for the Fluval Liv Microscaping Aquarium Kit, providing mechanical and chemical filtration to keep the nano tank's water clean and clear.
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Tank & FurnitureFluval
The Fluval Spec 2.6 gallon nano aquarium kit is a rimless glass aquarium (10.8 x 11.8 x 8.7 inches) with an upgraded 7000K high-output LED in a waterproof all-aluminum casing, 20 percent brighter than before. It includes powerful 3-stage filtration (foam block, carbon insert, BIOMAX media) with a 46 to 66 GPH circulation pump, plus cover. Ideal for planted nano setups with low to medium light plants. Freshwater, black.
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Tank & FurnitureFluval
The Fluval Spec 16 is a 16-gallon freshwater nano aquarium kit (21.8" x 11.5" x 17.5") with an integrated 3-stage filtration chamber (foam block, carbon insert, BIOMAX bio media), a 132 GPH circulation pump with dual flow outputs and surface skimmer, and a 1272-lumen high-output LED with a touch-sensitive day/night switch suitable for low to medium light plants. The kit includes the glass aquarium, cover, LED lighting, pump, and filter media.
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Tank & FurnitureFluval
The Fluval Spec 5 Gallon Aquarium Kit is a rimless 5-gallon nano aquarium (20.5 x 7.5 x 11.6 inches) with honeycomb edging concealing the rear filtration compartment. It includes a 7000K high-output LED (37 LEDs, 821 lumens, in an all-aluminum waterproof casing) capable of growing low-to-medium light plants, a 55-80 GPH circulation pump with output nozzle, 3-stage filtration (foam filter block, activated carbon insert, BIOMAX biological media), and an aquarium cover.
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Tank & FurnitureBulk Reef Supply
The BRS Fluval Spec 5 Gallon Aquarium Starter Kit bundles a 5-gallon glass rimless aquarium featuring 7000K LED lighting and 3-stage filtration with natural aquascaping and setup essentials: Black River Rock, Spider Wood, CaribSea Super Naturals Jungle River Sand, a 22W Sicce Jolly preset heater, a stick-on thermometer, and Aquaforest water conditioner. Fish and plants are not included.
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FilterFluval
Replacement BioMax biological filter media (2.1 oz) designed for Fluval Spec, Flex, and EVO nano aquariums, providing stage-3 biological filtration with a large, porous surface area for beneficial bacteria that break down fish waste, helping keep aquarium water clean and healthy.
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FilterFluval
Replacement foam pads designed for Fluval Spec aquariums; the foam pad effectively removes large particles and debris for mechanical filtration, and its pore structure also supports biological filtration activity.
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FilterFluval
Fluval Spray Bar Kit. An accessory for the matching aquarium filtration system.
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FilterFluval
The Fluval U2 is an internal underwater filter for aquariums of 12 to 30 gallons with a 400 L/H (105 GPH) pump output, providing 3-stage filtration with 2 foam pads, 2 poly/carbon cartridges, and BioMax biological rings. It features adjustable 3-way flow control (top output for circulation and oxygenation, integrated spray bar for a gentle even flow, bottom output for deep-water agitation) and a flip-top lid for easy cartridge access, and can be installed vertically or horizontally for fresh, marine, or reptile setups.
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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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SupplementationBlue Life USA
Blue Life USA Flux Rx fluconazole aquarium treatment effective against bryopsis and green hair algae; reef-safe with corals present but remove macroalgae and refugium before use. Available in sizes treating 100, 200, and 350 gallons.
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Water PurificationBlue Life USA
Blue Life USA Flux Rx (2 gram) is a safe and effective aquarium treatment for bryopsis and green hair algae, safe even in reef aquariums with corals present. Dose 1 level large scoop of powder per 25 US gallons (or 1 rounded small scoop per 5 gallons) to a high-flow area; allow 10-14 days for results; skimmer and UV off during treatment, and do not use with macroalgae or a refugium.
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Water PurificationBlue Life USA
Blue Life USA Flux Rx (4 gram) is a safe and effective aquarium treatment for bryopsis and green hair algae, safe even in reef aquariums with corals present. Dose 1 level large scoop of powder per 25 US gallons (or 1 rounded small scoop per 5 gallons) to a high-flow area; allow 10-14 days for results; skimmer and UV off during treatment, and do not use with macroalgae or a refugium.
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OtherNeptune Systems
Neptune Systems FMK Flow Monitoring Kit for Apex controllers; includes the FMM module, one 1-inch FS-100 flow sensor, and two 1/2-inch FS-50 flow sensors with unions and adapters. Monitors real flow rates of return pumps, reactors, and plumbing with Apex alerts.
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OtherNeptune Systems
The Neptune Systems FMM Fluid Monitoring Module offers practical solutions for real-world aquarium issues, compatible with the Apex Aquarium Controller. It has four ports for flow monitoring, leak detection, and water level management, plus a DC24 accessory port for PMUPs and solenoid valves. Accessories sold separately; includes FMM module and AquaBus cable. Requires a Neptune Systems Apex aquarium controller to operate.
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OtherTunze
Tunze foldable aquarium tongs in carbon-fibre-reinforced plastic with 316L stainless steel, lifting up to 2 kg via rubber-slatted, 360-degree-rotating gripper jaws. 86 cm length suits deep tanks; foldable with hanging loop for compact storage.
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Substrates & AquascapingAqua Forest Aquarium
Forest Black Wood Branch Type is an obsidian-hued driftwood that deepens to black when it absorbs water, with numerous smooth curving branches; it releases little to no tannins. Available in SS through XL sizes; may float initially until waterlogged.
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Substrates & AquascapingAqua Forest Aquarium
Forest Black Wood is an obsidian-hued driftwood from AFA, dark like charcoal and deepening to black as it absorbs water, with branched pieces curving smooth and elegant. It releases little to no tannins; available in sets sized for 30W/Mini M up to 120P tanks.
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Substrates & AquascapingAqua Forest Aquarium
Forest Black Wood_008 is a what-you-see-is-what-you-get piece of obsidian-hued driftwood from Aqua Forest Aquarium, measuring 25 by 22 by 15 inches. This charcoal-black wood has elegant branching, releases little to no tannins, and may float until fully waterlogged.
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Substrates & AquascapingAqua Forest Aquarium
Forest Black Wood_017 is a what-you-see-is-what-you-get piece of obsidian-hued driftwood from Aqua Forest Aquarium, measuring 21 by 10 by 10 inches. This charcoal-black wood has elegant branching, releases little to no tannins, and may float until fully waterlogged.
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Substrates & AquascapingUltum Nature Systems
Forest Driftwood is a natural aquarium driftwood with a flat, stackable profile ideal for building architectural layers, dramatic cliffs, and stable retaining walls in complex, multi-tiered aquascapes; earthy, textured slabs in warm beiges and deep browns give a raw, organic riverbank feel. The craggy surface offers ideal grip for wedging epiphytes like Anubias and Bucephalandra; nooks and crannies create a realistic overgrown look. Sizes from Extra Small (4-8 in) to 2XL (23-29 in); 1, 3, and 5 packs. Releases tannins that tint water tea-colored, subsiding over time.
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Tank & FurnitureUltum Nature Systems
The Ultum Nature Systems Foresta Paludarium 35E is a hybrid paludarium with built-in filtration, a cascading waterfall, and an atomizer misting system that supports both aquatic and terrestrial plants. The glass enclosure includes a submersible pump, Foresta Mat plant wall, and Foresta Line; plants, hardscape, and substrate are sold separately.
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OtherOcean Nutrition
Ocean Nutrition Formula One frozen fish food (35 cubes, 3.5 oz); a gourmet blend of seafood and algae for carnivorous and omnivorous marine fish. High protein content with a digestible marine and plant-origin gel binder; no preservatives.
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OtherOcean Nutrition
High-protein flake food for carnivorous and omnivorous marine and freshwater tropical fish. Made with fresh seafood and enriched with vitamins to support coloration, vitality, and immune health; formulated not to cloud water. 2.5 oz jar.
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OtherOcean Nutrition
Frozen gourmet fish food with extra marine algae, spirulina, and garlic for herbivorous and omnivorous tropical fish. Pack of 35 pre-portioned 3.5 oz cubes uses a digestible gel binder that keeps vitamins and nutrients intact.
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