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
OtherBulk Reef Supply
Green furniture-grade 90-degree elbow fitting (slip x slip); glossy, UV-resistant, injection-molded PVC with 5x the impact strength of standard plumbing fittings. Available in 3/4, 1, and 1-1/2 inch sizes; external slip connection fits over pipe.
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OtherBulk Reef Supply
Green furniture-grade external coupling fitting (slip x slip); longer, deeper sockets for added stability with a glossy, UV-resistant, injection-molded finish. Available in 1/2 and 1-1/2 inch sizes; 5x the impact strength of standard plumbing fittings.
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OtherBulk Reef Supply
Green furniture-grade PVC end cap; attaches to the outside of PVC pipes to provide a smooth surface or stable foundation. Glossy, UV-resistant, injection-molded finish; available in 1/2 and 3/4 inch sizes.
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OtherBulk Reef Supply
The green furniture-grade Schedule 40 PVC tee fitting has slip x slip x slip connections with a high-gloss, UV-resistant colored finish for aquarium plumbing.
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OtherTwo Little Fishies
Two Little Fishies Green Sea Veggies seaweed sheets (Porphyra umbilicalis); nutritious, completely natural seaweed for marine herbivores like tangs, surgeonfish, angelfish, and butterflyfish. Available in 30 g (10 sheets) and 300 g bulk packs.
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OtherNew Life Spectrum
New Life Spectrum Grow Cell Medium is a microcapsule fish food with a stable 300-400 micron particle size designed for feeding fish fry and small fish with small mouths. Its microcapsule technology creates a stable, neutral-buoyancy structure for less nutrient loss into the water column, with no added hormones. 55% min crude protein. Available in 15 Gram and 40 Gram sizes; exact current pricing not established.
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OtherGryphon
Gryphon AquaSaw diamond band frag saw (Model C-40) designed for cutting coral frags and aquarium rock; corrosion-resistant components and a 1/3 HP direct-drive DC motor. One square foot of work surface with a recirculating water coolant system; 1-year warranty.
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OtherGryphon
Gryphon XL AquaSaw diamond band frag saw; corrosion-resistant design for saltwater use, adding about two inches of cutting height over the C-40 for larger pieces. Includes a 42-inch stainless steel blade, 1/3 HP direct-drive DC motor, and one square foot of work surface.
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OtherD-D The Aquarium Solution
The D-D H2Ocean Compact Auto Top-Up is an ultra-compact smart ATO unit that automatically replaces evaporated water to keep aquarium salinity stable. It uses twin optical sensors with a visual alarm and built-in failsafe protection, has no moving parts, and comes complete with a DC top-up pump, recommended for aquariums above 50 liters.
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OtherHanna Instruments
A Bluetooth wireless pH tester from Hanna Instruments for field and aquarium use, with a large LCD display, built-in temperature sensor, and a chemical-resistant PEI body rated IP65 against dust and water. It measures pH from 0.00 to 12.00 with +/- 0.05 accuracy, supports automatic 3-point calibration, and works standalone or with the Hanna Lab App for data logging, alarms, and calibration tracking.
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OtherAquamaxx
The AquaMaxx Hang-On Bracket fits standard-size AquaMaxx BioMaxx biopellet and media reactors for easy two-piece installation; it will not work on Euro-braced aquariums.
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OtherFluval
Fluval Hang-On Observation Box (Medium); isolated area to observe new corals or protect corals being picked on by fish. Hangs on the exterior of most aquariums; air-driven (air pump sold separately), 0.3 gallons.
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OtherHanna Instruments
Hanna HI7061L general purpose cleaning solution for pH and ORP electrode probes, supplied in a 500 mL bottle. Soaking the electrode for about 5 minutes daily or weekly removes dirt and deposits from the liquid junction to keep measurements accurate.
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OtherHanna Instruments
Hanna Glass Cuvette Set HI731321 provides 4 precision glass cuvettes (vials) as extras for Hanna Colorimeter Checkers, photometers, and turbidity meters. The optically clear glass cuvettes have a 10 ml level mark and index mark for accurate measurements and must be kept clean and free of scratches for the most accurate readings. Caps not included.
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OtherBulk Reef Supply
Holiday-themed t-shirt from Bulk Reef Supply with a reef-keeping Fraggin Holidays design. A casual apparel item for saltwater aquarium hobbyists.
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OtherNT Labs
A liquid drop test kit from NT Labs for freshwater aquariums and ponds that measures both general hardness (GH) and carbonate hardness (KH) with up to 80 tests; KH tracks pH buffering capacity while GH tracks dissolved mineral content.
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OtherOceans Wonders
Oceans Wonders Hawaiian Black Ceramic Coral Frag Plugs (30-pack); 100% reef safe, fired at nearly 2000 degrees for inert material that needs no curing. 3/4-inch crown, 7/16-inch base; black color blends into frag racks and aids photography.
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OtherHayward
The Hayward Needle Valve is used when extremely accurate, reliable fluid metering is needed, making it a preferred choice for fine flow control of calcium reactor effluent down to the milliliter per minute. It has no metal components, so it resists corrosion in saltwater environments and delivers long-term reliability with moderate maintenance.
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OtherLee's Aquarium Products
Lee's Heavy Duty Specimen Container - Large (7 x 3.25 x 6 in, approx 0.55 gallons) hangs on tank rims up to 1 in thick, great for acclimation, coral dips, thawing and feeding foods, and observation before release.
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OtherLee's Aquarium Products
Lee's Small Heavy Duty Specimen Container (5.125 x 2.5 x 4.5 in, 0.25 gallons) has an integrated hanger for aquarium rims up to 1 in thick, useful for acclimation, coral or fish dips, thawing food, feeding, and observation.
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OtherHelloReef
The HelloReef 5 Gallon Bucket with lid is a solid, no-frills bucket for everyday fishroom tasks like water changes or mixing saltwater; it has an ergonomic carry handle, translucent sides for liquid visibility, and a secure lid to prevent spills.
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OtherHelloReef
The HelloReef Clownfish Mug is a colorful ceramic mug decorated with a clownfish design, a fun gift for aquarium hobbyists.
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OtherHelloReef
The HelloReef GloFish Aquarium Kit is a complete 15-gallon all-in-one freshwater setup (15 x 15 x 15 in) with AI Blade GloFish LED, built-in filtration, Sicce Micra Plus return pump, Sicce Scuba 50W heater, sand, plants, food, water conditioner, and HelloReef Connect app lessons.
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OtherHelloReef
The HelloReef Plushie is a 9-inch soft, cuddly plush toy designed with a vibrant orange and white clownfish pattern for aquarium hobbyists.
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OtherHelloReef
The HelloReef Sticker is a 5 x 5 inch colorful sticker depicting sea creatures, for personalizing aquarium equipment, laptops, water bottles, and more.
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OtherRod's Food
A frozen food blend from Rod's Food based on the Original Blend with extra algae, formulated for herbivores like tangs, rabbitfish, and blennies while also feeding fish, corals, and invertebrates. Sold as 2 oz or 6 oz flat packs.
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OtherHanna Instruments
Hanna HI702-25 includes 25 pre-measured reagent packets for the HI702 High Range Copper Checker; each single-use packet uses the bicinchoninate method, producing a purple tint when copper is present so the checker reads in parts per million.
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OtherHanna Instruments
Reagent refills for the handheld Hanna HI713 Low Range Phosphate Checker, providing reagents for 25 tests. Used to replenish the test reagents for measuring phosphate levels in saltwater and freshwater aquariums.
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OtherHanna Instruments
Hanna Instruments HI731339P volumetric pipette designed to measure and transfer exactly 100 µL (0.1 mL) of solution to a cuvette. Required for accurate HI758 Calcium Checker readings; precise fixed volume with one-handed operation.
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OtherHanna Instruments
Hanna Instruments HI736-25 Phosphorus ULR reagent refills for the HI736 handheld Phosphorus ULR Colorimeter Checker for marine water. Includes 25 reagent packets.
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