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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
Climate ControlSicce
The Sicce 6W Jolly Preset Heater is a virtually unbreakable plastic heater precisely calibrated to 77°F for aquariums up to 1.6 gallons. It features thermal protection against overheating and dry running, an on-off LED indicator, suction cups, a chew-safe cord cover, and adhesive decorations; it can be placed under gravel or sand and suits small aquariums, terrariums, paludariums, and turtle tanks.
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Water PurificationBulk Reef Supply
The Bulk Reef Supply 7 Stage PRO Plus 150 GPD Water Saver RO/DI System is a seven-stage reverse osmosis/deionization unit producing up to 150 gallons per day of 0 TDS water, ideal for city water with chlorine or chloramines and well water. It features dual 75 GPD Dow Filmtec membranes for faster production with less waste (1.5:1 ratio), dual carbon blocks, triple DI resin stages, a pressure gauge, triple inline TDS meter, and manual flush flow restrictor.
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Water PurificationBulk Reef Supply
The Bulk Reef Supply 7 Stage PRO Plus 200 GPD Water Saver RO/DI System is a seven-stage reverse osmosis/deionization unit producing up to 200 gallons per day of 0 TDS water, ideal for city water with chlorine or chloramines and well water. It features dual 100 GPD Dow Filmtec membranes for faster production with less waste (1.5:1 ratio), dual carbon blocks, triple DI resin stages, a pressure gauge, triple inline TDS meter, and manual flush flow restrictor.
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Water PurificationBulk Reef Supply
The Bulk Reef Supply 7 Stage PRO Plus 75 GPD RO/DI System is a seven-stage reverse osmosis/deionization unit producing up to 75 gallons per day of 0 TDS purified water, ideal for city water with chlorine or chloramines and well water. It includes sediment filtration, dual carbon blocks, an RO membrane, and triple DI resin stages for final polishing to 0 TDS.
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FilterWaterbox Aquariums
The Waterbox 7-inch Felt Filter Sock (10 in long, 100 or 225 micron felt) is a cleanable, reusable replacement filter sock capturing detritus for Waterbox INFINIA, Peninsula, and Reef LX aquariums.
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FilterWaterbox Aquariums
The Waterbox 7" Mesh Filter Sock is a 225-micron reusable mechanical filtration sock for aquarium sumps. It traps detritus and floating solids from the water column to keep water clear.
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OtherNeptune Systems
Neptune Systems 7.00 pH Calibration Fluid is a single-use packet for calibrating pH probes, used as the low point in two-point calibration for saltwater aquariums.
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OtherMilwaukee Instruments
The Milwaukee 7.01 Calibration Solution box contains 25 single-use 20 mL sachets of lab-grade pH 7.01 buffer solution. It is used to calibrate pH meters and probes accurately to plus or minus 0.01 pH, with each sealed sachet providing fresh solution for on-the-spot calibration.
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FilterBulk Reef Supply
BRS 7.5 lbs Bulk Color Changing CO2 Absorbent Media (soda lime) is used in a CO2 scrubber connected to a protein skimmer air intake to raise aquarium pH. It changes from white to purple when exhausted and is packaged in Mylar bags to preserve hydration.
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Tank & FurnitureGlasscages
The Glasscages 72-inch Rimless Low-Iron Glass Aquarium (180 gallons) is a USA-built low-iron glass tank with a 16-inch Synergy Reef Shadow V3 overflow, paired with a pre-assembled black oak and maple hardwood stand and a 45-inch 60-gallon sump.
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FilterAquatec
The Aquatec 75 GPD Auto Flush Flow Kit automates reverse osmosis membrane flushing to improve membrane life and production rate, flushing for a few seconds at startup and 15 to 20 seconds per hour of use. Compatible with 75 GPD membranes or 150 GPD Water Saver systems, it includes a 500 mL/min auto flush flow restrictor, pressure switch, and power supply; requires a working auto shut off valve.
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Water PurificationDOW Chemical
The Dow Filmtec (DuPont) 75 GPD Reverse Osmosis Membrane has a 96-99% stabilized salt rejection rate and is NSF/ANSI Standard 58 listed. Compatible with all 10-inch RO membrane housings and rated at 50 psi, it is sold dry for a long shelf life; change the flow restrictor to match if changing membrane GPD rating.
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SupplementationTropic Marin
Tropic Marin Phos-Start is a particulate nutrient supply for the first 2-3 months of a new reef aquarium's cycling phase, containing natural marine biopolymers, particulate phosphate, calcium, and trace elements like iodide, fluoride, and bromide. It stimulates the microbiome and coralline algae growth, especially in dry rock or bare bottom tanks, with targeted dosing that avoids unwanted nutrient spikes in the water column.
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SupplementationOXO
The OXO Good Grips 7-Piece Liquid Measuring Beaker Set makes small liquid measurements easy with beakers in 1 tsp, 1 tbsp, 1 oz, 2 oz, 1/2 cup, 2/3 cup, and 1 cup sizes. Each beaker has easy-to-read measurement markings, a funnel shape and spout for easy filling and pouring, a slip-reducing rubber bottom, and a nesting design for compact storage.
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SupplementationESV Aquarium Products
The ESV B-Ionic Calcium Buffer System 8 Gallon package includes 4 gallons of Component No. 1 Alkalinity and 4 gallons of Component No. 2 Calcium, dosed in equal parts to maintain calcium and alkalinity with no powder mixing.
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Water PurificationAqua Ultraviolet
The Aqua Ultraviolet 8 Watt Advantage 2000 UV Sterilizer with Hanger Spout is a hang-on-back UV sterilizer for tanks up to 70 gallons, with 1/2-inch barbed inlet, 8W lamp, and germicidal UV-C that eradicates algae, bacteria, and protozoa without chemicals.
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Water PurificationAqua Ultraviolet
The Aqua Ultraviolet 8 Watt Classic UV Sterilizer is a black-bodied inline unit that clarifies and sterilizes aquarium water with germicidal UV-C light, targeting algae, bacteria, and protozoa without changing water chemistry. Made in the USA with quick-release unions for easy maintenance, it sterilizes up to 200 gallons at 642 GPH.
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Water PurificationAqua Ultraviolet
The Aqua Ultraviolet 8 Watt Classic UV Sterilizer with a black body and 3/4-inch inlet/outlet is a plug-and-play UV unit for aquariums up to 70 gallons and smaller ponds. Its 8W slim-line lamp destroys free-floating algae, bacteria, and protozoa for clearer, healthier water, and the EZ twist cap allows easy lamp and quartz sleeve access.
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Water PurificationAqua Ultraviolet
The Aqua Ultraviolet 8 Watt Classic UV Sterilizer (White) has 3/4-inch inlet/outlet barbs and treats up to 200 gallons freshwater at 642 GPH, using germicidal UV-C to clarify water and sterilize algae, bacteria, and protozoa without altering water chemistry.
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OtherHikari
Hikari Algae Wafers (8.8 oz) are disk-shaped sinking wafers for herbivores like blennies, tangs, and algae eaters, with high vegetable matter, stabilized vitamin C, and balanced nutrition that will not cloud water.
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Water PurificationAqua Ultraviolet
The Aqua Ultraviolet 80 Watt Classic UV Sterilizer (Black Body) is a high-capacity UV-C water sterilizer for large freshwater aquariums and ponds. It emits germicidal UV-C rays that disrupt the DNA or RNA of single-celled organisms such as algae, bacteria, and protozoa, producing crystal clear water without chemicals or altering water chemistry. It handles up to 4,400 gallons as a sterilizer (9,000 gallons as a clarifier) at 3,678 GPH, features quick-release 2-inch slip unions and a twist cap for easy quartz sleeve maintenance, and includes an 80-watt NEMA transformer and two 40-watt UV lamps.
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Water PurificationAqua Ultraviolet
The Aqua Ultraviolet 80 Watt Classic UV Sterilizer (Black) is a black-bodied ultraviolet sterilizer with 3/4" inlet/outlet fittings. With a suggested saltwater flow rate of 1226 GPH, it controls unwanted bacteria and protozoa at low flow rates and free-floating algae at higher flow rates, suitable for saltwater aquariums up to 600 gallons.
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Water PurificationAqua Ultraviolet
The Aqua Ultraviolet 80 Watt Classic UV Sterilizer eradicates algae, bacteria, and protozoa using UV-C light in a large contact housing; rated for saltwater sterilization up to 600 gallons, with quick-release unions, an EZ-twist quartz cap, and two 40-watt lamps.
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Water PurificationPentair
The Pentair Aquatics 80 Watt Smart UV High Output UV Sterilizer reduces waterborne bacteria, algae, and fish disease/parasites for crystal clear water without filter media, recommended for saltwater tanks up to 600 gallons. It has a 5.75-inch diameter UV-resistant polymer body, low-pressure lamp with remote-style ballast and 16-foot power cord, and slip unions accommodating 2, 2.5, or 3-inch plumbing; includes the power supply, reducer fittings, UV lamp, and quartz sleeve.
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FilterSimplicity
The Simplicity 800DC In-Sump Protein Skimmer uses a controllable DC needlewheel pump in a hybrid cone cast-acrylic body for tanks up to 800 gallons (light bioload), with an adjustable air intake, locking collection cup with drain, and an included controller with digital readout.
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FilterAquatec
The Aquatec pressure switch is used to shut down the pump when the switch detects pressure build up caused from your holding container becoming full. Your system must have a working auto shut off kit for this switch to work properly; 1/4" push connect fittings, preset at 40 PSI, adjustable 30-60 PSI.
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OtherSimplicity
Simplicity 8-in-1 Freshwater Rapid Test Strips deliver fast, precise results in 60 seconds for eight parameters: pH, GH, KH, nitrate, nitrite, copper, free chlorine, and iron; 25 strips in 5 sealed packs for freshwater and brackish aquariums.
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OtherSimplicity
Simplicity 8-in-1 Saltwater Rapid Test Strips deliver fast, reef-safe water testing in a dip-strip format for saltwater and reef aquariums. Each box includes 25 individually sealed strips that check alkalinity (KH), calcium, magnesium, nitrate, nitrite, pH, specific gravity, and iron in 60 seconds, with every batch verified by ICP analysis for accuracy.
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Substrates & AquascapingMarcoRocks
MarcoRocks Reef Saver Nano Shelf Dry Live Rock is approximately 8 pounds of dry aquascaping rock with flat, elongated pieces (2 to 6 inches long) suited to small reef aquariums. The environmentally friendly rock is free of pests and nuisance algae, and its shelf shape is ideal for building stepped or layered features such as small archways and ledges.
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Water PurificationLifegard Aquatics
The Lifegard Aquatics Pro-MAX 90-watt UV Sterilizer is effective against bacteria and water-borne algae blooms for freshwater or saltwater aquariums up to 650 gallons. It features a unique flow-through design with repositionable angled inlet/outlet ports, 2-inch slip connections, a 4600 GPH max flow rate, and a UL-listed ballast with a bulb life countdown display.
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