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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
In community tanks
Chosen by aquarists
5,380 matching items · Most used first
Water PurificationTropic Marin
Tropic Marin Elimi-Phos Rapid 500 ml is a lanthanum-based phosphate remover for fast, controlled reduction of high phosphate to 0.02-0.4 ppm levels. One 500 ml bottle binds up to 5 g of phosphate; dose dropwise before a skimmer or fine filter, reducing by no more than 0.1 ppm per day. Use caution with tangs and monitor alkalinity.
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FilterReef Octopus
The Reef Octopus Elite 220-INT is an in-sump protein skimmer supplying powerful filtration for aquariums up to 530 gallons; cast acrylic and PVC construction that disassembles completely for cleaning; unique Super Cone 'wine glass' body stabilizes and concentrates organic-rich foam. Controllable VarioS-6S pinwheel pump (35-70W, 36V, 1200-2400 lph air, 528 gph water) with integrated memory controller (5 speeds, feed/pause modes, 0-10V input for 3rd-party controllers, float switch); 'twist and lift' collection cup, vented wedge valve, underwater outflow; footprint 16.5 x 12.2 in, height 24.8 in.
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Water PurificationAPI
API EM Erythromycin is a broad-spectrum treatment used to control bacterial disease in freshwater and saltwater aquariums. It treats body slime, mouth fungus, Furunculosis, bacterial gill disease, and hemorrhagic septicemia; it can be used with any API Ich, fungus, or parasite remedy to help prevent secondary bacterial infection, and it will not color the aquarium water; includes 10 powder packets treating up to 100 gallons of water.
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OtherMarcoRocks
MarcoRocks E-Marco-400 5 lb aquascaping mortar kit in coralline color, matching MarcoRocks Coralline rock. Non-toxic and Triton ICP tested; creates a permanent bond with full strength in 24 hours.
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OtherMarcoRocks
MarcoRocks E-Marco-400 5 lb aquascaping mortar kit in natural color, matching Reef Saver dry rock. Non-toxic and Triton ICP tested; creates a permanent bond with full strength in 24 hours.
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Substrates & AquascapingMarcoRocks
The MarcoRocks E-Marco-400 Aquascaping Mortar Complete Kit (Natural) is a reef-safe mortar for bonding rocks into intricate aquascapes with overhangs and arches. This 5 lb kit includes mortar powder, liquid polymer concentrate, mixing spatula, and a mixing bucket, and cures into a permanent, long-lasting bond in 24 hours.
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OtherSan Francisco Bay Brand
San Francisco Bay Brand Emerald Entree (3.5 oz, 30 cubes) is an all-natural frozen fish food of brine shrimp, mysis, plankton, krill, and greens with stabilized vitamin C and essential fatty acids, for freshwater and saltwater omnivores.
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FilterEnaly
Enaly OZAC-PLUS-100 100 mg/hr ozone generator with an ORP controller and air dryer; digital continuous sampling technology controls ORP reliably. Includes 6 feet of ozone-safe tubing; probe sold separately.
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FilterEnaly
Enaly OZAC-PLUS-200 200 mg/hr ozone generator with an ORP controller and air dryer; digital continuous sampling technology controls ORP reliably. Includes 6 feet of ozone-safe tubing; probe sold separately.
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Water PurificationEndich
Endich Copper Power (16 oz) is a copper solution for treatment of external parasites such as ich and velvet, described as one of the safest and yet most effective copper solutions thanks to its special formulation. It contains a very stable form of copper medication with a super-low rate of precipitation, maintaining active concentrations up to 2.5 ppm copper; one application remains active in the water for months, and it will not be removed by carbon filtration or cloud the water.
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Water PurificationEndich
Endich Copper Power 4 oz is a stable, highly effective copper solution for treating external parasites like ich and velvet in fish quarantine. Very low precipitation rate allows therapeutic 1.5-2.5 ppm copper levels to be maintained safely; dose gradually and monitor with a copper test kit.
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LightsAqua Worx
The Aqua Worx EOS RGB LED Light for nano aquariums offers 7-mode RGB spectrum settings with 4-stage dimming and a clip-on gooseneck mount; available in RGB N5 (12W) and RGB N7 (18W), includes power supply.
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LightsAqua Worx
The Aqua Worx EOS White LED Light is an economical clip-on gooseneck light for planted and freshwater nano aquariums, available in two sizes (N5 at 12W and N7 at 18W) with 6500K color temperature.
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Jebao
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Water PurificationBrightwell Aquatics
Brightwell Aquatics Erase-CL is an all-purpose dechlorinator that removes chlorine, chloramines, ammonia, and nitrites from tap and aquarium water; it is safe for use directly in all marine and freshwater aquaria and is free of phosphate and silicate.
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FilterReef Octopus
Reef Octopus eSsence S-130 is a compact in-sump protein skimmer rated for aquariums up to 160 gallons. Features the Aquatrance 1800s pinwheel pump (11W, 480 L/H air), dome bubble chamber, removable silencer collar, 16-step water level dial and twist-lift collection cup.
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SupplementationESV Aquarium Products
ESV B-Ionic Magnesium liquid magnesium supplement for reef aquariums; helps stabilize pH when used with calcium and alkalinity supplements. Available in 32 fl oz, 1 gallon, and 5 gallon sizes; 1 mL per gallon raises magnesium by 10 ppm.
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SupplementationESV Aquarium Products
ESV B-Ionic Nitrate provides nitrogen to reef aquariums in the form of highly purified calcium nitrate for ultra-low-nutrient systems, with no sodium or potassium by-products, while supplementing calcium and alkalinity.
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SupplementationESV Aquarium Products
ESV Calcium Hydroxide is pure kalkwasser powder that meets American Water Works Association and Water Chemical Codex standards; it adds calcium and alkalinity with a single product while maintaining pH, commonly dosed through an auto top-off system.
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LightsMaxspect
The Maxspect Ethereal Infinite E8-230 is a 230W LED reef light fixture with 276 multi-spectrum LEDs, coral habitat region patterns, music-synced ambient lighting, and WiFi control through the Syna-G Cloud app.
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LightsMaxspect
Maxspect Ethereal Infinite hanging kit for overhead installation of the Ethereal Infinite LED light fixture (sold separately). Includes everything needed for a clean, secure mount.
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OtherEHEIM
Eheim Everyday Fish Feeder automatic fish feeder with an actively aerated feeding chamber (100 mL capacity) that keeps dry food fresh. Programmable with double dosage options, splash-proof keys, and low-battery warning; batteries included.
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OtherBulk Reef Supply
Bundle of the Eheim Everyday Fish Feeder automatic fish feeder and 2 oz of BRS Premium Saltwater Fish Food Pellets (1mm, neutrally buoyant, 59% protein). The battery-operated feeder offers digital LCD programming with multiple daily feedings, an adjustable portion slider, a ventilated chamber that keeps food dry, and a manual snack button.
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Substrates & AquascapingCaribSea
CaribSea's Exotica Elephant Skin Rock is a natural freshwater aquascaping stone sold in a 25-pound box, free of paint, dye, or plastic coatings. Each piece is unique, with rounded edges safe for long-finned fish and natural cracks and crevices that shelter shrimp and anchor epiphytic plant roots.
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Substrates & AquascapingCaribSea
CaribSea Exotica 25 lb box of natural Fire Stone rock for freshwater aquascapes; naturally porous with a unique textured surface, ideal for attaching epiphytes and mosses. Pieces range approximately 3-10 inches in length.
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FilterEHEIM
The EHEIM eXperience 250 is a reliable external canister filter with a square basic shape for aquariums up to 250 litres, offering large filter volume, high stability, and space-saving corner placement. It comes completely equipped with filter media (EHEIM MECH and SUBSTRATpro), a hose adapter unit with integrated shut-off taps, individually removable filter baskets with fold-away handles, and runs quietly on only 8 W at 700 l/h.
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OtherAquaIllumination
Aqua Illumination extruded aluminum EXT rails for mounting or hanging AI Sol, Vega, or Hydra HD LED lights, alone or in multiples. Available in 6, 12, and 18-inch lengths in silver or black.
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LightsAquaIllumination
AquaIllumination EXT single-module hanging kit in black for suspending one AI light module above the aquarium. It includes the hanging wires and mounting hardware for a clean, adjustable overhead installation.
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Substrates & AquascapingFluval
Fluval's extendable algae scraper reaches up to 26 inches, letting you clean deep aquariums without getting your hands wet. Its carbonized stainless steel blade removes stubborn algae from glass in hard-to-reach areas, for freshwater or saltwater tanks.
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SupplementationAquario
Bendable acrylic CO2 diffuser for planted tanks that releases a fine mist of CO2 for efficient absorption and healthier plants. Extra-long tube suits deeper aquariums and can be custom bent; includes suction cup mounts, practice pipes, and a bending cord. Available in small, medium, and large sizes; price shown for the largest size option.
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