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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
FilterSimplicity
The Simplicity 240DC In-Sump Protein Skimmer features a controllable DC pump with needlewheel impeller, a hybrid cone cast-acrylic body, a locking collection cup with drain, and a controller with digital readout; it handles 240/180/120 gallons at light/medium/heavy bioloads and assembles with thumbscrews for easy cleaning.
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Tank & FurnitureInnovative Marine
Innovative Marine 25 NUVO Fusion AIO Lagoon Aquarium — High quality at an entry level price. AIO all-in-one filtration with built-in safety features.
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Tank & FurnitureInnovative Marine
The Innovative Marine SafeScreen is a pre-assembled 1/4" clear mesh screen lid custom-fit for the 25 NUVO Fusion AIO Lagoon aquarium, keeping jumping fish inside while promoting gas exchange with minimal light loss. Molded lip edges let it sit flush on the tank's inner glass rim with no clips required, and corner breakaways allow routing of cords.
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Water PurificationAqua Ultraviolet
A 25-watt Classic UV sterilizer from Aqua Ultraviolet in black with 3/4-inch inlet/outlet, rated up to 1200 GPH as a sterilizer and 2000 GPH as a clarifier. It eradicates algae, bacteria, and protozoa with an EZ-twist cap for lamp maintenance and a lifetime warranty on the housing.
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Water PurificationAqua Ultraviolet
The Aqua Ultraviolet 25 Watt Classic UV Sterilizer in white uses germicidal UV-C rays to clarify and sterilize freshwater aquarium water up to 1200 gallons at 1200 GPH, with quick-release unions and easy quartz sleeve maintenance.
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Climate ControlLifegard Aquatics
Lifegard Aquatics 25-watt pre-set aquarium heater made of shatterproof quartz glass and calibrated to hold 78°F with no adjustment needed. It mounts with included suction cups, has an LED indicator that shows when heating, and is rated for tanks up to 10 gallons in freshwater or saltwater.
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Water PurificationLifegard Aquatics
The Lifegard Aquatics 25-watt Pro-MAX High Output UV Sterilizer is for freshwater or saltwater aquariums up to 130 gallons, controlling water-borne bacteria and algae blooms. Its patent-pending flow-through design has less-restrictive angled inlet and outlet ports that can be positioned in multiple directions for flexible plumbing; specs include 2-inch slip connections, 1000 GPH max flow (550 GPH for algae and bacteria control), 25 PSI max pressure, and a ~9,000-hour (one-year) lamp life. Also available in 40, 55, 90, and 120-watt sizes.
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SupplementationReef Octopus
The Reef Octopus 250PRO Commercial Calcium Reactor is developed for the commercial sector including public aquariums, fish farms, and aquaculture centers up to 1,500 US gallons. High-performance reverse flow design with Water Blaster 7000 recirculation pump (70W, 2-year pump warranty, silicone carbide shafts/bearings); equipped with pH probe holder, built-in bubble counters, and independent flow valves; media capacity 25 L (6.6 gal), required feed pump 600-1000 GPH; footprint 18.1 x 17.3 in, height 43.3 in.
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Climate ControlAquaReady
The AquaReady Preset Aquarium Heater (250W, open box) is a submersible heater factory-preset to 78 degrees Fahrenheit for saltwater and freshwater tanks. It includes a suction-cup mount and maintains a stable temperature without adjustable controls.
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OtherRed Sea
The Red Sea 25cm Slide-Out Control Panel mounts reef monitoring and maintenance devices (dosers, controllers) in one easy-access location inside REEFER aquarium cabinets. It measures 9.8" x 17.7" x 0.8" (25 x 45 x 2 cm), is made of marine-spec 0.8" black laminated plywood with quick-release stainless steel soft-close sliders, mounts on the left or right side, and requires a minimum cabinet internal depth of 18.1" (46 cm); it fits all REEFER cabinets except NANO models.
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OtherHanna Instruments
25-Pack HI70024P 35ppt Salinity Calibration Sachet — NIST traceable salinity calibration. Single-use sachets in light-blocking foil prevent oxidation, keeping solutions fresh.
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Climate ControlSicce
Sicce 25W Jolly Preset Heater for tanks up to 6.6 gal — Extremely durable, virtually unbreakable plastic units that can be placed beneath aquarium gravel or sand. Thermal protection prevents overheating at preset or if run dry.
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Supplementation2HR Aquarist
2HR Aquarist APT 1 Zero is a concentrated daily liquid fertilizer for planted aquariums; nitrate and phosphate-free, providing soluble potash, magnesium, and chelated iron for balanced nutrition in new or fish-heavy tanks. Shrimp and snail safe; 300 ml bottle.
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Supplementation2HR Aquarist
2HR Aquarist APT 3 Complete is an all-in-one liquid fertilizer for densely planted aquariums; its calibrated Capstone Formula supplies nitrogen, phosphorus, potassium, magnesium, and triple-chelated iron. Shrimp, snail, and fish safe; 300 ml bottle.
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Water Purification2HR Aquarist
2HR Aquarist APT Fix is a safe, fast-acting algae treatment that targets stubborn algae like BBA, hair, string, and fuzz through precise spot dosing. Copper-free, fish and shrimp safe; biodegrades after use; 300ml bottle with pipette.
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SupplementationSimplicity
The Simplicity 2L Modular Dosing Container is a clear acrylic vessel for storing aquarium dosing solutions, 2-part supplements, top-off water, or nutrient additives. Its modular design connects multiple units in series, with liter and ounce graduations, a snug lid, strong PVC hose connectors, and integrated holders for optional float switches.
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OtherNeptune Systems
Neptune Systems 2-Month Trident ACM Reagent Kit — Replacement reagents for the Trident Marine Water Analyzing System. Each kit comes with new bottles that place directly into the Trident's reagent holder and take only a few minutes to exchange.
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OtherNeptune Systems
Neptune Systems two-month Trident NP reagent kit covering one nitrate and one phosphate test per day for two months. Includes calibration solution, NP reagents 1, 2, 3a, 3b and waste neutralizer.
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SupplementationBulk Reef Supply
BRS 2-Part Pharma Calcium & Alkalinity Bulk Total Package with Dosers — Same total package plus two BRS 1.1 mL dosing pumps for automated daily dosing. Includes additives, mixing jugs, dispensing pumps, and a funnel.
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SupplementationBulk Reef Supply
The BRS 2-Part Pharma Calcium & Alkalinity Starter Package includes pre-measured pharmaceutical-grade calcium chloride, soda ash, and magnesium mixes with jugs, dispensing pumps, and a funnel to start daily 2-part reef dosing.
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SupplementationBulk Reef Supply
BRS 2-Part Pharma Calcium & Alkalinity Total Package Pre-Portioned — Pre-portioned containers of calcium, alkalinity, and magnesium to make your own 2-part liquid dosing solutions. Just pour one of each container into separate mixing jugs, top off with water, and you are ready for daily 2-part dosing.
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SupplementationBulk Reef Supply
BRS 2-Part Pharma Calcium & Alkalinity Total Package Pre-Portioned with Dosers — Pre-portioned containers of calcium, alkalinity, and magnesium plus two BRS 1.1 mL dosing pumps for automated daily dosing. Includes gallon mixing jugs and dispensing pumps.
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SupplementationISTA
The ISTA 3 in 1 CO2 Diffuser combines a bubble counter, a check valve, and a ceramic diffuser into a single compact unit for planted freshwater aquariums. It produces a fine mist of CO2 bubbles for maximum diffusion, mounts with included suction cups, and its replaceable ceramic plate allows years of continued use.
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OtherReef Nutrition
The Reef Nutrition 3 oz Value Pack TDO Chroma BOOST includes one 3 oz pouch each of TDO-C1 Extra Small granular, TDO-C2 Small granular, and TDO-EP1 Medium pellet fish foods, ideal for saltwater fish and invertebrates 1/2 inch or larger. The granulated and pelleted food is top-dressed with Haematococcus algae, providing an excellent source of astaxanthin for vibrant color and superior nutrition. It uses easily digestible fishmeal protein with no unwanted fillers or additives, comes in moisture- and oxygen-resistant foil bags, and can last up to 1 year with proper storage. Used by many marine breeders as professional hatchery feed.
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Water PurificationAquaReady
The AquaReady 3-Stage 75 GPD RO System removes 96% of impurities producing up to 75 gallons per day through a 1-micron sediment filter, 5-micron carbon filter, and 75 GPD RO membrane, with 1-year warranty.
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OtherFocustronic
The Focustronic 3.2 mm Luer Set (4 Pack) is a set of 4 Luer connectors for Focustronic testing devices.
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OtherHikari
Hikari 3.87 oz Marine A Pellet Fish Food is a nutritionally complete daily diet for larger marine fish with a specialized sponge-like texture that pellets become when hydrated, resembling the foods fish instinctively eat, and is readily accepted by finicky eaters. It contains seaweed meal, pure-cultured spirulina, clam extract for palatability, DHA and EPA fatty acids, and color enhancers to promote health, growth, development, and vibrant coloration. The pellets slowly sink to feed all aquarium levels, will not dissolve or cloud water, and reduce waste.
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OtherVivid Creative Aquatics
The Vivid Creative Aquatics 3/4" Random Flow Generator Flow Kit converts laminar return-pump output into varied, naturalistic flow with no moving parts, using a Flex-Series RFG nozzle and genuine Loc-Line modular hose. Recommended for 420-500 GPH per nozzle (700-900 GPH dual), it includes three adapters fitting Red Sea Reefer G2/MAX, Waterbox DN20, Innovative Marine NXT/EXT, Tideline AIO, CADE, and any 3/4" Loc-Line or 25-35mm socket fittings.
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OtherMiscellaneous
This pre-cut clear vinyl tubing is 3/8 inch ID by 1/2 inch OD and sold in 10 or 25 foot lengths. The flexible tubing is rated to 45 PSI and is used for non-pressurized applications such as reactors, air lines, and CO2 scrubber plumbing.
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Water PurificationG.A. Murdock
Mur-lok 3/8 inch linear low-density polyethylene tubing is made in the USA for RO systems, fitting all Mur-lok and John Guest push-connect fittings. It is BPA-free, made of FDA-approved materials, NSF Standard 58 certified, and offers strong pressure ratings and stress-crack resistance; sold by the foot.
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