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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
Substrates & AquascapingAqua Natural
Aqua Natural Betta World - Diamond Black Substrate (1lb) is a natural black quartz gravel for betta fish tanks and bowls. The eco-friendly, non-toxic substrate is chosen to enhance betta coloration and has minimal effect on water pH.
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Substrates & AquascapingAqua Natural
Aqua Natural Betta World Jade is a 1 lb bag of polished natural jade aquarium pebbles for betta tanks. The 100 percent natural, non-toxic stones are selected for minimal impact on water chemistry and should be rinsed before use.
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Substrates & AquascapingAqua Natural
Aqua Natural Betta World Mini Lava Rock is an eco-friendly, non-toxic 1-pound substrate with minimal effect on water chemistry; rinse before use to showcase betta fish with visual interest.
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Substrates & AquascapingAqua Natural
Aqua Natural Betta World Purple Diamond Substrate is a 1-pound eco-friendly, non-toxic decorative substrate for betta aquariums with minimal effect on water chemistry.
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Substrates & AquascapingAqua Natural
Aqua Natural Betta World Rose Cream Substrate (1 lb) is an eco-friendly, non-toxic substrate that adds visual interest to Betta aquariums with minimal effect on water chemistry.
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Substrates & AquascapingAqua Natural
Aqua Natural Betta World Tutti Frutti Substrate is a 1 lb bag of colorful small gravel designed for betta aquariums. The 100% natural, polished agate stones are non-toxic, eco-friendly, and have minimal effect on water chemistry.
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Climate ControlLifegard Aquatics
A large display digital thermometer; displays both aquarium water temperature and room temperature. You cannot see the temperature of water just by looking at it; having a temperature display device on any tank is a worthwhile investment that can easily save you from disaster; by showing the room temperature and tank temperature in a single display, you can analyze how to react to adverse conditions.
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Substrates & AquascapingCaribSea
Live sand is a great choice for new reef tank setups as it clears quickly and contain millions of live bacteria, speeding up your tank's cycle. Bimini Pink sand contains a wide variety of particle sizes from small 0.5mm grains of sand to larger 5mm pieces of shell; contains live bacteria, varied grain size: 0.5 - 5.0mm.
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OtherHamilton Technology
The Hamilton Bimini Sun is a low-profile double-ended (HQI) metal halide reflector for nano tanks; its corrosion-proof anodized aluminum reflector intensifies output, light visors direct light downward, and it is available for 70, 100, 150, or 250 watt HQI bulbs.
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Tank & FurnitureUltum Nature Systems
The Bio Bowl Terrarium Kit is a DIY terrarium kit with essential basics to create a successful planted setup, including an adjustable integrated LED light with 3 brightness levels and 3 preset timer options, substrate, sphagnum moss, and Seiryu accent stones; hobbyist chooses plants and hardscape. Bowl 175 and Bowl 200 sizes.
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Tank & FurnitureUltum Nature Systems
The Bio Cylinder Terrarium Kit is a DIY terrarium kit with essential basics to create a successful planted setup, including an adjustable integrated LED light with 3 brightness levels and 3 preset timer options, substrate, sphagnum moss, and Seiryu accent stones; hobbyist chooses plants and hardscape. Cylinder 150 and Cylinder 200 sizes.
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SupplementationAquaforest
Aquaforest Bio S is a liquid nitrifying bacteria supplement that accelerates the start of the nitrogen cycle in new aquariums. The selected bacteria strains speed removal of ammonia and nitrite, and it can also be used when adding fish or curing dry rock.
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FilterISTA
The ISTA Bio Sponge Filter is a simple, air-driven filter made from high-quality porous sponge foam that provides mechanical and biological filtration in one quiet unit. It enhances oxygen supply and is ideal for breeding, fry, and secondary filtration.
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Water PurificationTropic Marin
Tropic Marin Bio-Actif Salt is a pharmaceutical-grade sea salt mix with bio-active marine substances and carbon dosing elements, designed for ultra-low nutrient reef systems with balanced calcium, magnesium, and alkalinity.
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Water PurificationTropic Marin
Tropic Marin BIO-ACTIF sea salt 10 kg is a pharmaceutical-grade mix with all 70 macro and trace elements in natural tropical seawater proportions, stabilised by bioactive substances. It includes prebiotic bacterial food to stabilise aquarium microbiology; dose 35 ml per litre for 32-35 ppt salinity.
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Water PurificationTropic Marin
Tropic Marin BIO-ACTIF sea salt 4 kg is a pharmaceutical-grade mix with all 70 macro and trace elements in natural tropical seawater proportions, stabilised by bioactive substances. Includes prebiotic bacterial food for aquarium microbiology; dose 35 ml per litre for 32-35 ppt salinity.
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FilterBulk Reef Supply
BRS Bulk Bioballs are 1.5-inch black high-density polypropylene biological filter media with a pegged surface that provides roughly 22.7 square inches of surface area per ball (about 80 per gallon). They cultivate nitrifying bacteria, promote gas exchange and oxygenation, resist clogging, and are inert for use in freshwater or saltwater biological filters and gas exchange reactors.
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OtherEHEIM
Eheim bioblock replacement filter cartridges for the LiBERTY filter, supplied as a pack of 2.
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FilterWavereef
WaveReef BioBlock-1020 (BioBrick-1020) is crafted using advanced ceramic nanosphere technology. Each piece consists of 100 million ceramic nanospheres heated to over 1800 C, creating an ultra-porous structure that maximizes surface area — a single BioBall or BioBrick offers up to 450 square meters for colonization by beneficial bacteria.
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SupplementationFluval
Fluval Bio-CO2 Pro 500L is a low-pressure CO2 system for freshwater planted aquariums up to 132 gallons, combining the safety of biological CO2 production through natural fermentation with the convenience of pressurized delivery. It provides up to 30 days of reliable, controllable CO2 with safe low-pressure operation and no high-pressure cylinders to refill, and includes a stainless-steel reaction chamber, adjustable bubble counter with precision regulator, 12V solenoid valve, nano bubble diffuser, check valve, and starter activator and booster packets.
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SupplementationFluval
The Fluval Bio-CO2 Pro system combines the safety of biological carbon dioxide production with the convenience of pressurized delivery, ideal for planted aquariums up to 33 gallons. Safe low-pressure operation through the naturally occurring fermentation process provides up to 30 days of reliable CO2 production with no high-pressure cylinders to refill. Includes a stainless-steel reaction chamber, adjustable bubble counter with precision regulator, nano bubble diffuser, pressure release valve, inline check valve, airline, and starter activator and booster packets.
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SupplementationFluval
The Fluval Bio-CO2 Pro system combines the safety of biological carbon dioxide production with the convenience of pressurized delivery, ideal for planted aquariums up to 66 gallons. Safe low-pressure operation through the naturally occurring fermentation process provides up to 30 days of reliable CO2 production with no high-pressure cylinders to refill. Includes a stainless-steel reaction chamber, adjustable bubble counter with precision regulator, nano bubble diffuser, pressure release valve, inline check valve, airline, and starter activator and booster packets.
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SupplementationFluval
The Fluval Bio-CO2 Pro Refill Pack provides long-lasting CO2 supply for Fluval Bio-CO2 Pro low-pressure CO2 systems, with pre-measured activator yeast sachets and booster tablets to quickly kickstart the biological fermentation process. Each refill pack lasts up to 4 months on Model 125, up to 2 months on Model 250, or up to 1 month on Model 500; includes 4 activator yeast packets and 4 booster tablet packets.
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OtherProdibio
Prodibio BioDigest is a natural mixture of live bacterial strains that reduces and removes nitrates and phosphates through bacterial digestion. Using heterotrophic bacteria to start the conversion process, it carries the nitrogen cycle through to elemental nitrogen, eliminating waste from the aquarium via biological filtration.
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SupplementationProdibio
Prodibio BioDigest is a concentrated blend of live nitrifying and heterotrophic bacteria (Nitrosomonas, Nitrobacter, Bacillus) that jump-starts biological filtration in freshwater and saltwater aquariums; pre-measured airtight ampoules, one per 250 gallons every 15 days, help break down organic waste and reduce nitrate and phosphate.
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Water PurificationModern Reef
Modern Reef BIODiversity (500 ml) diversifies and boosts microfauna in the reef aquarium, providing diverse marine bacterial strains, microorganisms, minerals, and nutrients in a lab bio-engineered solution. Microorganisms act as micro armies to naturally out-compete and feed on pests like dinoflagellates and cyanobacteria; shake vigorously and dose in a high-flow area: 50 ml per 100 L for new aquariums (repeat after a week), 10 ml per 100 L once or twice weekly for maintenance.
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FilterFluval
Bio-Foam is designed specifically for the Fluval 06 and 07 series performance canister filters. Bio-Foam captures large particles and debris for effective mechanical filtration; custom fit to prevent debris bypass, ideal pore size allows efficient water flow and longer media lifespan.
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FilterFluval
Fluval Bio-Foam Max is a 2-in-1 biological and mechanical filter foam custom-fit for Fluval 06 and 07 series performance canister filters, with no gaps for maximum filtration efficiency. Its rippled surface pattern provides up to 30% more surface area for trapping waste and debris and hosting beneficial bacteria; replace every 6 months in freshwater or saltwater aquariums.
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FilterFluval
The Fluval Bio-Foam Value Pack provides a 6-month supply of biological and mechanical foam filtration media for Fluval 06 and 07 series performance canister filters. It includes Bio-Foam Max (2-in-1 media with a rippled surface for 30% more debris capture), Bio-Foam precision-cut mechanical pads, and Bio-Foam+ with a large porous surface for beneficial bacteria colonization, for freshwater or saltwater use.
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FilterFluval
The Fluval Bio-Foam Value Pack is a six-month supply of replacement filter media designed for Fluval 06 and 07 series canister filters. It combines Bio-Foam Max 2-in-1 biological and mechanical media, precision-cut Bio-Foam mechanical media, and Bio-Foam+ mechanical and biological media, all custom-fit to prevent debris bypass.
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