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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
Other3F
3F Artemia (Brine Shrimp) Frozen Fish Food 500 g is a critical first food for the survival and growth of many young freshwater and marine fish. Wild-caught artemia selected for size and purity to stimulate appetite without contaminating the water.
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OtherNyos
Nyos Artemis provides the ideal nutrition for numerous saltwater fish and corals. The high-quality Artemia salina can be added directly to your tank without having to thaw or mix with any other additives or liquids; perfect for broadcast feeding or target feeding.
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Substrates & AquascapingFluval
Fluval Moss Ball helps create ideal aquarium conditions for small fish and shrimp by adsorbing and trapping phosphate and nitrite. It also helps reduce aquarium maintenance by deterring the growth of many of the compounds that cause the unsightly buildup of organic matter; treats 10-20 US gal, effective up to 2 months.
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LightsKessil
Kessil A-Series Gooseneck (Tank Mount); 24-inch flexible mount for positioning A-series Kessil LEDs over the tank. Mounts directly to tank rims up to 1.25 inches thick and is compatible with A360, A360XE, A500X, A350, H160, and H380 models.
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LightsKessil
The Kessil A-Series Mounting Arm is a rigid clamp-on arm that suspends Kessil A-Series lights over tanks, adjustable for height and distance (18-24 in wide tanks), with integrated cord channel and compatibility with rims up to 1.25 in.
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SupplementationASF
ASF Reef Shots Coralline Booster is a 24 x 20 ml pack of single-dose biocatalyst vials (vitamins, hormones, enzymes) that promote calcium synthesis, solid skeleton formation in stony corals and optimum coralline algae growth. Dose one 20 ml vial per 200 L every two weeks.
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Substrates & AquascapingUltum Nature Systems
The Ash Stone is a versatile natural aquarium hardscape stone with a sophisticated palette of soft gray and tan tones, smooth surface texture with creased detailing, and natural holes for shrimp and small fish hiding spots; can anchor aquatic plants and works as a weathered accent in terrariums and paludariums.
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Substrates & AquascapingUltum Nature Systems
The Ashen Stone is a natural aquarium hardscape stone and one of the lightest-colored stones available, maintaining pale off-white to gray tones even when wet, with occasional subtle streaks of rusty orange; stands out beautifully when paired with a dark substrate or lush plants, and suitable for terrariums and paludariums.
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OtherBubble Magus
The Bubble Magus Assembled Acrylic Fish Trap is a pre-assembled trap with included feeding tube and adjustable mounting bracket for removing fish without tearing down the aquascape, available in small (5.91 x 3.15 x 3.54 in) or medium (7.84 x 5.91 x 5.91 in) sizes.
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Substrates & AquascapingUltum Nature Systems
The Assorted Accent Wood is a multitasker of aquascaping driftwood chunks; mixed shapes and textures allow stacking, wedging, and building stable foundations, filling gaps, creating layered depth, or balancing a dominant focal point. Sold in packs and sizes from Extra Small to Large.
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Substrates & AquascapingUltum Nature Systems
The Assorted Rock Box is a blind-box style assortment of natural aquarium hardscape stones; each box includes varying sizes, shapes, and rock types perfect for experimenting, practicing layouts, or adding unique accent pieces to an aquascape. One rock type per box. 10LB and 20LB boxes.
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SupplementationATI
ATI Essentials Mixed Reef is a highly concentrated two-part dosing system (2 x 2.7 L) for mixed reef aquariums, delivering alkalinity, calcium, magnesium, and 25 trace elements; ~5X more concentrated than traditional Balling systems.
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SupplementationATI
ATI Essentials SPS is a highly concentrated two-part dosing system designed for SPS dominant aquariums. Built on data from tens of thousands of ICP lab tests, this formula delivers a balanced supply of major and trace elements. The 5.4 liter set includes #1 KH Complex and #2 Calcium Complex (2.7 liters each). Part #1 delivers 27,000 degrees dKH of alkalinity per bottle; Part #2 delivers 200,000 mg of calcium. About 3.6 times more concentrated than most two-part systems; increases and stabilizes pH. Inorganic alkalinity is immediately available for coral growth without interacting with nitrate or phosphate. Ideal for tanks with low to moderate fish loads. Part #1 can precipitate; restore with a hot water bath.
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OtherATI
The ATI ICP-OES Pro Water Analysis is a laboratory test of 43 reef tank parameters covering calcium, alkalinity, magnesium, major and trace elements, nutrients, and pollutants; collect samples with the included vials, mail them with the prepaid return envelope, and receive tailored dosing recommendations online within 1-2 weeks.
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LightsATI
The ATI Straton X Mounting Arm is the official bracket for hanging the ATI Straton X LED fixture above an aquarium. It secures the light to the tank's rear panel for a clean, rimless look.
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OtherNeptune Systems
Neptune Systems ATK V2 is a standalone plug-and-play auto top off kit with two optical water-level sensors, a mechanical float valve and a 24V PMUP v2 pump that lifts water over 14 feet. Triple safety (backup sensor, IQ-Fill runtime intelligence, float valve) prevents overfilling; it works without an Apex and unlocks notifications and sensor ports when paired with one.
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LightsOrphek
The Orphek Atlantik iCon LED Fixture (24.21 x 9.37 x 2.11 in, 218-235W) has 156 dual-chip 5W LEDs across 6 channels, 1000% dimming with lunar cycle, WiFi/app control, and hanging kit included for reef tanks up to 48 x 30 in.
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OtherNot specified
An ATO float valve mounting bracket that hangs onto an aquarium sump for auto top-off systems. It fits sump panels from 5 to 18mm thick.
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OtherNot specified
This ATO float valve mounting bracket hangs an auto-top-off float valve onto an aquarium sump, fitting glass thicknesses of 5 to 18 mm.
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OtherMaxspect
Optional ATO reservoir designed specifically for Maxspect's Lagoon Smart Aquariums. Each reservoir features a bottom drain port so that it can be easily attached to a float valve; a gravity-fed auto top off system means you get all the benefits of a fully automated ATO system, but without the need for controllers, pumps, and all the extra wires that come with it. 4.5 gallon, fits the 99 gallon Lagoon (LS-150).
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OtherMaxspect
Optional ATO reservoir designed specifically for Maxspect's Lagoon Smart Aquariums. Each reservoir features a bottom drain port so that it can be easily attached to a float valve; a gravity-fed auto top off system means you get all the benefits of a fully automated ATO system, but without the need for controllers, pumps, and all the extra wires that come with it.
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Tank & FurnitureUltum Nature Systems
The Ultum Nature Systems Atomizer Mist Maker Kit is an ultrasonic fogger for freshwater paludariums and aquariums with emergent aquatic plants, producing a fine cool mist that boosts humidity and creates a jungle-like atmosphere without raising water temperature. It includes the mist maker, power adapter, three diffusion plates, a changing key and a splash guard, and has automatic low-water shutoff (minimum 0.5-inch depth).
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OtherInnovative Marine
A component for replacing evaporated aquarium water. Listed size or rating: 15 Gallon. Brand: Innovative Marine.
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OtherInnovative Marine
A component for replacing evaporated aquarium water. Listed size or rating: 5 Gallon. Brand: Innovative Marine.
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LightsInnovative Marine
A compact 6.4W refugium LED fixture from Innovative Marine (Auqa Gadget line) designed for sumps and all-in-one aquariums, with 45 LEDs tuned to 420nm violet, 470nm blue, 630nm magenta, and 660nm red spectrums that target macroalgae growth for nutrient export. It mounts via a sump arm bracket or hook-and-loop fasteners, covers about 9 by 4 inches, and produces no meaningful heat transfer to the water.
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LightsInnovative Marine
Designed for maximum macroalgae growth, the ChaetoMax Refugium LED has taken the proven technology behind other successful lighting designs and crafted them into an easy to use light for small refugium systems. The LED lights chosen specifically target the cellular growth structure of the algae allowing for faster growth and denser nutrient uptake without excessive energy waste.
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Tank & FurnitureInnovative Marine
Add the CustomCaddy Media Basket to your Innovative Marine Nuvo tank to create a custom media basket for the included PurityPacks or any other type of filtration you may need. Each CustomCaddy includes Innovative Marine's PurityPacks that combine physical and chemical filtration, high-performance fiber balls, high-capacity GFO, and ROX 0.8 premium carbon.
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Wave GenerationInnovative Marine
Innovative Marine's WaveLink Auqa Gadget is a super small but powerful powerhead. The new sine wave technology keeps the pump running ultra quiet compared to traditional pumps, and the DC controller lets you customize the flow to your tanks needs; tiny footprint, magnetic mounting system, recommended tank size 10-30 gallons.
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Tank & FurnitureInnovative Marine
Keep your fish and other animals in your aquarium! Innovative Marine DIY Screen Lid Kits fit inside of most rimmed aquariums and by using the Innovative Marine Screen Top Clips, they can be used with rimless aquariums as well. Many fish will jump if they are startled and without a lid covering your tank, they will more than likely end up on the floor.
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OtherInnovative Marine
The Innovative Marine Auqa Gadget Gourmet Defroster Pro is a 3-in-1 magnet-mounted device that defrosts, separates, and dispenses frozen aquarium foods in one step. Its unique flow-port design tumbles frozen food as it thaws into bite-sized pieces while keeping it contained. Features adjustable food-release settings, durable cell-cast acrylic construction, and converts to a classic feeding ring for flake and pellet food. Mounts on glass up to 1/2 inch thick; safe for marine and freshwater aquariums.
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