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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 ControlNeptune Systems
The Neptune Systems Apex EnergyBar 632 (UK plug, new version) is a CE-certified 6-outlet 220V AC power strip for the Apex controller, with independent power monitoring and LED indicators per outlet to detect failing equipment. It includes a built-in 100W 24VDC power supply feeding three 1LINK ports plus two 24VDC accessory ports, and all outlets are relay-switched.
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OtherNeptune Systems
The Apex Module Mounting Bracket from Neptune Systems ensures secure and organized placement of your Apex modules. This sturdy and compact bracket offers easy installation, keeping your system tidy and easily accessible for maintenance.
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Climate ControlNeptune Systems
The Neptune Systems A3 Apex System provides control with scaled-back monitoring and room to grow for the everyday aquarist, offering more options than the Apex Jr. Monitors critical parameters such as temperature and pH, with SMS/e-mail alerts, power/Wi-Fi loss and leak alerts, automated equipment control, and remote monitoring from any device. Features temperature and pH monitoring, 3x FMM ports, 6x controllable outputs, 3x 1Link outputs, 2x DC 24V outputs, 6x digital inputs, audible alarm, Wi-Fi, Ethernet, analog leak detection, and optical solid-surface leak sensor.
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OtherNeptune Systems
The Neptune Systems Apex Trident Reagent Kit provides a 2-month supply of replacement reagents for the Trident Marine Water Analyzer, covering roughly 240 alkalinity, 120 calcium and 120 magnesium tests at the default testing schedule. It includes reagents A, B and C plus a seawater calibration sample, with drop-in bottles for quick exchange.
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OtherNeptune Systems
The Neptune Systems Apex Trident Reagent Kit (6 Month Supply) provides six months of replacement reagents for the Trident Marine Water Analyzer, covering roughly 720 alkalinity, 360 calcium and 360 magnesium tests at the default schedule. It bundles three 2-month kits including reagents A, B and C plus seawater calibration samples in drop-in bottles.
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OtherAPI
The API Freshwater Master Test Kit is a 7-bottle liquid test kit that quickly and accurately measures the most important freshwater aquarium levels: pH, high range pH, ammonia, nitrite, and nitrate. It performs over 800 tests and includes a computer-calibrated laminated color card, 4 glass test tubes, a holding tray, and a step-by-step instruction booklet on correcting unsafe water conditions.
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FilterFoursquare Aquatics
The APIS-60 Algae Turf Scrubber from Foursquare Aquatics provides natural phosphate and nitrate control for reef tanks of 80 to 200 gallons by growing algae on a textured mesh screen under dual 60-LED panels focused on the ideal spectrum for rapid growth. Its slide-out drawer houses the screen so algae can be harvested without moving the main body or disconnecting plumbing, with a super safe dual drain system, easy-to-clean spray bar, and virtually zero light spill. Made of strong 1/4 inch polycarbonate; includes scrubber body, drawer, mesh screen, 2 LED panels, spray bar, and input/drain bulkheads.
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FilterEHEIM
The Eheim aqua 200 is a modular corner internal filter for 30-200 L freshwater and marine aquariums, with a 4 W pump delivering 210-440 L/h and adjustable output plus diffuser for oxygenation. Clip-in foam cartridges provide mechanical-biological filtration, a Mediabox accepts carbon or other media, and extra canister modules can be added; mounts with 4 suction cups.
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Water PurificationAPI
The Fluval A101 Air Pump is a single-outlet air pump rated for aquariums up to 50 gallons. It improves water circulation and oxygen levels with ultra-quiet, energy-efficient operation and an adjustable flow control dial.
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FilterSicce
The Sicce Aqua Filtra 10 is a hang-on filter designed to provide simple, reliable filtration for aquariums up to 10 gallons. It features three-stage filtration, ultra-wide waterfall spillway, self-priming pump, built-in flow control, and a Sicce Jolly heater holder.
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FilterSicce
The Sicce Aqua Filtra 10/20 Complete Cartridge 2 Pack provides replacement drop-in cartridges for the Aqua Filtra 10 and 20 internal filters (the 10 uses one cartridge, the 20 uses two). Each cartridge combines mechanical, chemical, and biological filtration to keep aquarium water clear and healthy, and installs by simply sliding into the filter.
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FilterSicce
This 2-pack of replacement media kits provides the fine mechanical, chemical, and biological filtration layers for the Sicce Aqua Filtra 10 or 20 internal filters — the Aqua Filtra 10 uses one kit and the 20 uses two. Media is swapped by opening the existing cartridge, discarding the used media, and reloading the frame.
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FilterSicce
The Sicce Aqua Filtra 10/20 Sponge Kit is a 4-pack of replacement mechanical filter sponges for Sicce Aqua Filtra 10 and Aqua Filtra 20 power filters, each cartridge using one sponge. Swapping a clogged sponge lets you restore flow without replacing the rest of the filter media.
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FilterSicce
The Sicce Aqua Filtra 20 is a hang-on-back power filter for freshwater and saltwater aquariums up to 20 gallons, with up to 120 GPH flow at 6W, three-stage filtration (20 ppi sponge mechanical/biological, activated carbon and zeolite chemical, wool pad fine mechanical), an ultra-wide waterfall spillway for oxygenation, built-in flow control, a self-priming pump that restarts after power interruptions, and a cartridge maintenance indicator. It includes 2 filter cartridges and holders for Sicce Jolly and Scuba heaters.
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FilterSicce
The Sicce Aqua Filtra 40 Complete Cartridge 2-pack contains genuine replacement cartridges for the Aqua Filtra 40 filter. Swapping in a fresh cartridge keeps filtration running at peak performance and the aquarium inhabitants healthy.
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FilterSicce
The Sicce Aqua Filtra 40 Media Kit (2 Pack) is a genuine replacement media kit that restores the Aqua Filtra 40 hang-on-back filter to factory-new performance.
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FilterSicce
Genuine Sicce Aqua Filtra 40 replacement sponges, 4-pack, keep the hang-on-back filter running smoothly. Swap one sponge out when clogged without changing the rest of the filter media. Compatible with the Aqua Filtra 40 filter, which uses one sponge per cartridge.
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FilterSicce
The Sicce Aqua Filtra 40 Power Filter is a hang-on-back power filter that provides mechanical, chemical, and biological filtration for aquariums.
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Tank & FurnitureInnovative Marine
The Innovative Marine Aqua Gadget SafeScreen DIY Mesh Lid Kit builds a custom-fit 1/4" clear mesh screen lid for rimmed or rimless aquariums to contain jumpers while preserving light penetration and gas exchange. The kit includes cut-to-size powder-coated aluminum rails, frame corners with breakaway tabs for cords, snap-in rigid spline, and a roll of clear mesh, available in 24"x24", 36"x24", and 48"x24" sizes; the lipped rails sit flush on the tank's inner rim with no clips needed.
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Water PurificationAqua Ultraviolet
The Aqua Ultraviolet UV Sterilizer 2-inch Union replaces the standard 3/4-inch threaded x barb union half on Aqua Ultraviolet Classic UV Sterilizers with a 2-inch slip connection for direct hard plumbing to 2-inch PVC, includes replacement O-ring.
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OtherAquaworx
The Aqua Worx 3D Retractable Net - Round is a high-quality aquarium net for safely transferring livestock or removing debris and plant trimmings; retractable handle extends up to 22.8 inches. Available in Small and Large sizes.
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OtherAquaworx
The Aqua Worx 3D Retractable Net - Square has a rigid 3D pocket that holds its open shape underwater for safe catching of dwarf shrimp and nano fish; telescoping stainless steel handle extends up to 22.8 inches. Available in Small and Large sizes.
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OtherAquaworx
The Aqua Worx Algae Brush is a hardscape algae cleaning brush with stiff, durable bristles for scrubbing tough algae like Black Beard Algae (BBA), Staghorn, and Green Spot Algae (GSA) from rocks, stones, and driftwood; ergonomic handle for targeted scrubbing in tight hardscape gaps.
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OtherAquaworx
The Aqua Worx Algae Sponge Pad is designed to help remove annoying soft and hard algae from aquarium glass. A must-have aquarium maintenance tool, this pad is soft and gentle on surfaces but textured enough to scrape off nuisance algae from the glass, leaving a clear and pristine finish. Dimensions 4.5 x 2.5 inches; comes in a pack of 2.
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LightsAquaworx
The Aqua Worx EOS LED Aquarium Light - RGB is a gooseneck nano aquarium light with 7-mode dynamic RGB color settings and 4-stage dimming for low-to-medium tech nano tanks; flexible arm with universal rim clamp for glass up to 15mm. Models N5 RGB (12W) and N7 RGB (18W).
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LightsAquaworx
The Aqua Worx EOS LED (White) is a gooseneck nano aquarium light with a crisp 6500K daylight spectrum for low-to-medium tech nano tanks; flexible arm with universal rim clamp for glass up to 15mm. Models N5 (12W) and N7 (18W).
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FilterAquaworx
The Aqua Worx Flux Stainless Steel Lily Pipes are premium surgical-grade stainless steel filter inflow and outflow pipes for canister filters; scratch-resistant and durable. Inflow features thin slots to protect small livestock; available in 12/16mm and 16/22mm sizes.
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FilterAquaworx
The Aqua Worx Flux Stainless Steel Lily Pipes with Skimmer are surgical-grade stainless steel canister filter inflow/outflow pipes with an integrated surface skimmer that removes surface film and scum; adjustable intake flow gate and livestock-safe inflow slots. Sizes 12/16mm and 16/22mm.
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OtherAquaworx
The Aqua Worx Omni Aquatic Plant and Coral Super Glue is an aquarium-safe cyanoacrylate gel adhesive for attaching aquatic plants, moss, and corals to hardscape, as well as simple decor repairs; 5g aluminum tubes. Allow to fully cure before placing in water.
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LightsAquaworx
The Aqua Worx Orion 12-inch LED Light is a high-PAR aquarium LED for planted tanks, with a crisp white spectrum tuned to make greens pop; adjustable acrylic legs fit tanks 11-19 inches wide. 24 Watts; well-suited for high-tech CO2 tanks.
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