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
OtherReef Rax
The Reef Rax Large Corner Frag Rack is a large coral frag rack designed to fit into the corner of an aquarium, making efficient use of tank space for coral propagation and display. It comes in multiple color and configuration options to suit different aquascaping needs.
0 showcased tanks
OtherVossen
The Vossen Larval Trap is a suction-cup-mounted acrylic trap with a battery-powered LED light that lures fish fry into the trap, using gentle airlift flow to safely collect larvae for breeding.
0 showcased tanks
OtherHM Digital
The HM Digital LBS-10 Leak Block combines an electronic moisture sensing pad with a latching solenoid valve that automatically shuts off water flow (up to 5 GPM) and sounds a high-frequency alarm when water is detected — ideal for RO/DI systems and household appliances. It connects via 3/8" FNPT or 1/2" MBSP fittings, runs on a 9V battery (included), and fail-safes shut with a low-battery alert.
0 showcased tanks
OtherNeptune Systems
Neptune Systems LD-1 low-profile leak detection probe that connects to the Neptune FMM module and alerts your Apex controller when water touches the sensor. Its thin design slips under carpet or into tight, low-clearance spaces; compatible with the FMM only (not the ALD module), and suited for water-on-floor warnings or skimmer cup overflow detection.
0 showcased tanks
OtherNeptune Systems
A full-size solid surface leak detection probe from Neptune Systems that works with the FMM module of an Apex aquarium controller. Its weighted design sits flat on hard floors, inside stands, or on top of skimmer cups, and the Apex can notify the owner or shut down equipment when water touches the sensor.
0 showcased tanks
OtherNeptune Systems
The Neptune Systems LD-3 Optical Multi-Surface Leak Sensor uses optical sensor technology to detect water spills and alert Neptune Apex controllers via an FMM port connection. It is epoxy-coated and corrosion-resistant, reusable after contact with water, and works on hard surfaces including metal without false alarms.
0 showcased tanks
OtherNeptune Systems
A leak detection kit from Neptune Systems that adds moisture sensing to any Apex aquarium controller. It includes an FMM module, two LD-2 solid surface leak detection probes, and a 3-foot Aquabus cable, with support for up to four probes total; when moisture is detected, the Apex can send alarms through Fusion and shut down equipment on an EnergyBar.
0 showcased tanks
OtherAquaReady
AquaReady Leak-Resistant Fish Bags are 3-mil plastic transport bags with a double bottom seal, available in multiple sizes for fish, coral frags, and aquatic plants.
0 showcased tanks
OtherLEGIT Fish Food
LEGIT Fish Food is a treat for your favorite fish. The bottom blend contains 3mm oblong pellets that sink quickly to the bottom for species that skim the floor. Fish no longer need to fight over one large sinking wafer, ensuring all have the opportunity to feed. Made from a proprietary blend of quality ingredients that are nutrient-dense, bio-available and low waste, produced in small batches under strict quality control. Perfect for bottom feeders such as Cory Catfish, Shrimp, Plecos, Loaches and more. Available in 2oz and 4oz sizes.
0 showcased tanks
OtherLEGIT Fish Food
LEGIT Fish Food is a treat for your favorite fish. The community blend contains a mix of pellets ranging in size from 0.75 to 1.2mm to ensure all fish have the opportunity to feed. Smaller pellets are designed to stay afloat longer while larger pellets will sink to attract larger species. Made from a proprietary blend of quality ingredients that are nutrient-dense, bio-available and low waste, produced in small batches under strict quality control. Perfect for community tanks containing Angels, Rainbowfish, Tetras, Mollies, Dwarf Cichlids, Barbs and more. Available in 2oz and 4oz sizes.
0 showcased tanks
OtherLEGIT Fish Food
LEGIT Fish Food is a treat for your favorite fish. It features a 0.45mm slow-sinking pellet that is perfect for smaller livestock species, tropical nano fish and larger fry. Made from a proprietary blend of quality ingredients that are nutrient-dense, bio-available and low waste, produced in small batches under strict quality control. Perfect for nano fish such as Rasboras, Tetras, Badis, Minnows and more. Available in 2oz and 4oz sizes.
0 showcased tanks
OtherReef Factory
The Reef Factory Level Sensor is a compact float-switch device that sends instant app notifications of water level changes in sumps, dosing containers, or ATO reservoirs, protecting against overflows and salinity changes; includes power supply and resetting magnet.
0 showcased tanks
OtherLifegard Aquatics
The Lifegard Aquatics Handheld Fixed Scrubber is perfect for almost all glass or acrylic tanks. The fixed handle lets you apply more pressure than magnetic cleaners, removing stubborn buildup with ease; cleaning pad footprint 10 x 4.5 inches. Start from the top and work down; inspect and clean the pad before and after sessions to minimize scratch risk; replacement pads are available.
0 showcased tanks
OtherEHEIM
The EHEIM lime wood diffuser (3 pieces) is a replacement air diffuser for the EHEIM skimmarine 100 protein skimmer. Made from lime wood, it produces fine, uniform air bubbles for efficient protein skimming in marine aquariums.
0 showcased tanks
OtherNeptune Systems
Continuous vertical liquid-level sensor for Neptune Apex systems that measures exact water depth in inches or centimeters in sumps, ATO reservoirs, and dosing containers. Tracks evaporation and consumption in the Apex Fusion app and can trigger alerts or automated actions.
0 showcased tanks
OtherAlgae Free
The Algae Free Long Handle Algae Scraper is a 12-inch handheld scraper with 3.125-inch replaceable steel blade for removing algae from glass in tight spaces and deep tanks.
0 showcased tanks
OtherZen Reef
The Zen Reef Long Shroom Box is a laser-cut acrylic containment box for settling mushroom corals. Its slotted walls provide water circulation while keeping detached polyps inside, and it can sit on the sandbed or be mounted on the tank wall with included magnets.
0 showcased tanks
OtherFiji Cube
The Fiji Cube LoPro External Overflow Box (1600 GPH) is a low-profile external overflow with three drains for drilled aquariums. Its removable o-ring-sealed weir lifts out for cleaning without disturbing dry-side plumbing, and it supports a Bean Animal setup for quiet, redundant overflow.
0 showcased tanks
OtherBulk Reef Supply
Low-profile bulkhead overflow strainers from Lifegard Aquatics that extend only fractions of an inch past the bulkhead. Available in slip and threaded versions from 1/2 to 2 inches, they keep fish, snails, and debris out of overflows, sumps, and pumps.
0 showcased tanks
OtherHanna Instruments
The Hanna HI98129 is a waterproof pocket tester that measures pH, conductivity, and TDS in a single low-range combo pen. It offers simple one-button operation for quick spot-checks of aquarium water.
0 showcased tanks
OtherNeptune Systems
The Neptune Systems Low-Profile Advanced Leak Detection Probe is used with the Neptune ALD Advanced Leak Detection Module and any Apex controller to alert you of possible leaks. The low-profile design slips under carpet and hides away easily, and it plugs into the ALD module with a modular RJ11 connection. Place probes strategically around the stand, sump, and tank to catch leaks early.
0 showcased tanks
OtherNeptune Systems
An AquaBus accessory module from Neptune Systems for Apex aquarium controllers that creates a realistic moonlight cycle in the reef tank. It drives separately sold LSM LED strings of 2 to 5 moonlight LEDs, dimming them in phase with the true lunar cycle so moonrise and set times match nature. Plug-and-play with upgradeable firmware and dual AquaBus connectors for expansion; requires a Neptune Apex controller.
0 showcased tanks
OtherNeptune Systems
Moonlight LED strings from Neptune Systems that connect to the LSM Lunar Simulator Module on an Apex controller to create a true lunar cycle in the reef tank. Available in strings of 2, 3, 4, or 5 high-intensity LEDs spaced 24 inches apart with wide 100-plus-degree lenses, each LED covers about 12 inches and their intensity is adjustable from 0 to 100 percent; the LSM module is not included and required.
0 showcased tanks
OtherNyos
Nyos LYQ-RED Coral Food (250 mL) is a concentrated liquid coral food with a broad particle spectrum from 5 microns to 2mm (including Calanus copepods), suitable for SPS, LPS, soft corals, and anemones. Rich in omega 3/6/9 fatty acids, amino acids, vitamins, and astaxanthin, it resists breaking down in water for easier capture and feeds without excess phosphate; start at 10 mL per 250 gallons daily.
0 showcased tanks
OtherMilwaukee Instruments
The Milwaukee MA887 is a digital seawater refractometer that measures salinity by refractive index. It displays results in PSU, parts per thousand, or specific gravity within seconds, with automatic temperature compensation, one-point calibration, and an IP65-rated waterproof housing.
0 showcased tanks
OtherBashsea
The Bashsea Mad Rack is a commercial-grade coral frag rack laser-cut from 3/8-inch cast acrylic with an open-flow slotted design. It holds up to 170 coral frag plugs (in the 11 x 22 inch size) and is sold in blue or black for high-flow grow-out and display applications.
0 showcased tanks
OtherBashsea
The Bashsea Mad Rack Pro is a commercial-grade coral frag rack built from thick 3/8 inch cast acrylic with 100% laser-cut edges for rigidity and a professional finish, suited to retail displays and grow-out systems. Its variable-gap slot design holds frag plugs securely in high-flow environments while keeping placement flexible and water flow open under and through the rack for cleaner conditions and faster coral growth. Available in three sizes: Mad Rack Pro 6-11 (42 frags, 11x6x2 inches), 11-11 (78 frags, 11x11x3 inches), and 11-22 (142 frags, 22x11x3 inches).
0 showcased tanks
OtherMag-Float
The Mag-Float 350 is a large floating magnetic glass aquarium cleaner made with powerful rare-earth neodymium magnets. Drag the outer magnet along the tank and the inner magnet follows, scraping off algae; the inner magnet floats for easy retrieval. Recommended for glass tanks up to 350 gallons, glass thickness up to 5/8 in; large debris-free cleaning pad, non-toxic ABS plastic, scraper holder and blade included.
0 showcased tanks
OtherMag-Float
Replacement glass scraper blades for Mag-Float floating magnet cleaners (2 pack). Large/Large+/X-Large blades fit Mag-Float 350, 400, and 500.
0 showcased tanks
OtherMag-Float
The Mag-Float 1000 PRO is a heavy-duty floating magnetic algae cleaner for glass and acrylic aquariums up to 1000 gallons with 1-1/2" to 2" thick walls (8.25" x 3.5" x 1.375"). Powerful neodymium magnets drive the inner pad as you move the outer handle, the inner unit floats for easy retrieval, and the debris-free cleaning pad helps prevent scratches (not suited for curved cylinder tanks).
0 showcased tanks