Discover aquarium tools, test kits, food and accessories and see the tanks using them.
Build your setup
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
1,688 matching items · Most used first
OtherRed Sea
The Red Sea ReefSense Leak Detector detects freshwater and saltwater leaks and connects to any ReefControl sensor port, sending real-time alerts through the ReefBeat app and enabling emergency protocols that can shut off compatible equipment via ReefControl Power.
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OtherRed Sea
The Red Sea ReefSense Magnetic 4-Probe Holder mounts up to four ReefSense digital monitoring probes (pH, salinity, ORP, or temperature) in your sump or aquarium via a magnetic bracket. It holds each probe at the correct depth and in consistent water flow for accurate, stable readings, while keeping probes organized and cables routed neatly.
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OtherRed Sea
The Red Sea ReefSense ORP Probe is a digital oxidation-reduction-potential probe for the ReefControl Lite or Pro controllers, providing real-time ORP monitoring, notifications, and logs via the ReefBeat app; it features a double-junction design with dual ceramic external junctions for longevity, 30mV accuracy with 1mV precision, and can automate equipment such as an ozonizer when combined with ReefControl Power.
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OtherRed Sea
The Red Sea ReefSense pH & Temperature Probe provides continuous pH and temperature monitoring through the ReefBeat app, connecting to any available ReefControl probe port so readings can log parameters and trigger equipment control.
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OtherRed Sea
The Red Sea ReefSense pH High Calibration Pack is a 10-pack of single-use pH 7.0 and 10.0 calibration buffer packets for the ReefSense pH probe used with the ReefControl system. The two-point high-range calibration covers the typical pH range of marine aquariums, and calibration data is stored directly on the probe through the ReefBeat app.
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OtherRed Sea
Red Sea ReefSense digital probe that continuously monitors salinity and temperature in a reef aquarium, displaying salinity in PSU/ppt, mS, or specific gravity with +/- 1% salinity accuracy. It connects to any port on a ReefControl Pro or Lite controller and integrates with the ReefBeat App for notifications, logs, and equipment control.
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OtherRed Sea
The Red Sea ReefSense Salinity Calibration Solution 5-Pack provides five single-use calibration solution sachets for accurately calibrating the ReefSense Salinity & Temperature probe used with ReefControl Lite and Pro controllers.
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OtherRed Sea
The Red Sea ReefSense Single Probe Holder is an adjustable-height mount that clips onto 4–12mm aquarium glass and holds one ReefSense digital monitoring probe (pH, salinity, ORP, or temperature) at the correct depth and in consistent water flow for accurate readings. It includes fittings for standard 12mm and 18mm diameter probes and keeps the probe from being knocked or drifting out of place in the sump or display tank.
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OtherRed Sea
The Red Sea ReefSense Temperature Probe is a digital titanium-tipped temperature sensor for the ReefControl system, connecting directly to ReefControl Lite, Pro, or Power for real-time monitoring, notifications, and data logging. It is accurate to 0.1 degrees Celsius and, when paired with ReefControl Power, can automatically switch DC equipment such as cooling fans or AC equipment such as heaters based on temperature readings.
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OtherRed Sea
The Red Sea ReefSense USB-C Connector powers ReefSense probes away from the ReefControl unit, enabling remote Bluetooth use from a phone, power bank, or charger; it lets hobbyists take instant readings or run probe calibrations at a mixing station without affecting logged tank data.
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OtherMaxspect
The Maxspect REFINES Grande is a magnetic aquarium glass scraper with a powerful N52 magnet for removing tough algae. It includes stainless steel and ABS plastic blades for glass and acrylic tanks up to 1 inch thick, zero-friction gliding feet, and a built-in whetstone for sharpening blades.
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OtherMaxspect
The Maxspect REFINES Standard is a magnetic aquarium glass scraper that cleans algae from viewing panes. Its compact magnetic design removes stubborn film and coralline algae deposits.
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OtherSalifert
The Salifert Refracto-Check is a 10 mL 35 ppt calibration solution for refractometers only. Shake before use; discard the first 3 drops; cap tightly after each use to avoid value drift from evaporation.
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OtherNot specified
The Refractometer is specifically designed for use in saltwater aquariums and delivers consistent, reliable measurements. Accurately measures salt content or specific gravity; equipped with automatic temperature compensation (ATC); easy to read through a clear viewing window; made of durable, corrosion-resistant materials; includes calibration fluid and storage case.
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OtherZen Reef
The Zen Reef Regular Shroom Box (6.25 x 5.5 x 3 in) is a laser-cut acrylic container with circulation slats and sealed N52 neodymium magnets for safely settling detached mushroom corals, small anemones, or as a social acclimation box, available in clear or black.
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OtherTwo Little Fishies
A revolutionary product developed by Julian Sprung for cleansing live stony and soft corals, zoanthids, and anemones. It is a surface cleaning dip based on plant extracts.
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OtherCaribSea
Aquascaping made fast and easy Create dramatic rock sculptures instantly Easily attach corals to existing structures Can be used underwater or out of water Sets in 2 minutes Safe for use in marine and reef aquariums Easily bond rocks to created dramatic structures or attach corals to your existing reef scape. CaribSea Rock Lock is a fast-setting reef cement that can be used either in or out of water to create bonds in mere minutes.
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OtherReef Nutrition
Enriched L-Type Brachionus plicatilis rotifers concentrated Zooplankton feed Highly nutritious plankton feed consisting of five million, fully intact Brachionus plicatilis marine rotifers with millions of eggs per 6 oz bottle. Excellent food for SPS, LPS and soft corals.
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Other3F
The 3F Rotifer Blister is a premium frozen rotifer fish food in a 100 g blister pack.
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OtherBulk Reef Supply
Highly Digestible and High Protein Source for All Fish! Bulk Reef Supply's Freeze-Dried Rotifers are the perfect food for nearly all larval fish, both marine and freshwater.
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OtherLoc-Line
The Loc-Line Round Nozzle snaps onto Loc-Line modular hose segments to focus and direct return-line flow in an aquarium, commonly used on returns and closed-loop plumbing. Available in 1/4", 1/2" (with 1/4" or 3/8" openings), and 3/4" (5/8" or 19 mm) sizes for the corresponding Loc-Line system; modular segments can be repositioned to aim flow precisely.
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OtherEHEIM
EHEIM replacement rubber feet for various canister filters, including professionel 5e 350/450/700, professionel 5e 600T, professionel 4+ 250/350/600, professionel 4e+ 350, professionel 4+ 250T/350T, aquacompact 40/60, ecco pro 130/200/300, professionel 3 250T/350T, ecco (2231-35), and ecco comfort (2232-36).
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OtherEHEIM
EHEIM replacement rubber feet for classic 150/250/350/600 and professionel 5e 350/450/700 canister filters.
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OtherTrigger Systems
The Trigger Systems Ruby 10 Gallon ATO Reservoir is a crystal-clear acrylic top-off container with an emerald top, removable lid, laser-engraved level markings, and dual 1/4-inch tube ports.
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OtherTrigger Systems
Ruby ATO reservoirs feature crystal clear acrylic with an elegant emerald top, to hold top off water for your aquarium in a closed container. The Trigger Systems ATO containers have a removable lid to prevent excess evaporation, while providing a large opening to refill and clean the reservoir as needed.
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OtherSustainable Aquatics
Provide the Best Nutrition for Your Axolotl 3.2mm Soft Sinking Pellets For Axolotls & Other Small Amphibians Superior Smell & Palatability Axolotl Diet was formulated using the experience and knowledge of Sustainable Aquatics’ fish foods. The base food pellets are extremely nutritional.
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OtherSustainable Aquatics
Sustainable Aquatics Axolotl Diet is a 6.4 mm soft sinking pellet with 45% crude protein, formulated for axolotls and other small amphibians to support health, growth, and reproduction.
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OtherSustainable Aquatics
Provide the Best Nutrition for Your Fish Cold-Processed to Maintain Nutritional Value High in Fat & Protein Available in Several Pellet Sizes After researching fish feed manufacturing, Sustainable Aquatics learned that most fish feeds are processed at temperatures that destroy important fats and antioxidants. With this in mind, they developed their own raw, cold-processed feed to achieve their vision for color, health, size, reproductive health, and growth rate.
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OtherSustainable Aquatics
The Sustainable Aquatics SA Dry Hatchery Diet (0.8mm) is a cold-processed slow-sinking pellet food providing complete nutrition for aquarium fish, corals, and invertebrates. With 52 percent crude protein, 16 percent fat, and antioxidants including astaxanthin and spirulina, it supports color, health, growth, and reproductive health. Available in 4 oz and 8 oz sizes.
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OtherSustainable Aquatics
Sustainable Aquatics Dry Hatchery Diet (1.2mm slow sinking pellets) — Provide the best nutrition for your fish. After researching fish feed manufacturing, Sustainable Aquatics learned that most fish feeds are processed at temperatures that destroy important fats and antioxidants.
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