Explore plant fertilizers, liquid CO2, reef dosing pumps and supplements used by aquarists.
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
607 matching items · Most used first
SupplementationCarbonDoser
The CarbonDoser Electronic CO2 Regulator V2.0 is a fully automatic regulator with electronic solenoid accurate to ±1/1000 second, no needle valves, LED bubble indicator, and included check valve, compatible with Neptune, Hydros, GHL, and PinPoint controllers.
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SupplementationCarbonDoser
The CarbonDoser Precision Check Valve is a corrosion-resistant check valve custom-made for use with the CarbonDoser CO2 regulator, delivering more consistent and reliable CO2 delivery while protecting the regulator from water exposure. It features a lower 4 psi crack pressure for consistent line pressure, a special corrosion-resistant check ball and spring assembly, and 1/4-inch push-connect fittings for CO2-resistant polyurethane or polyethylene RO tubing; the unit can be disassembled for inspection and cleaning.
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SupplementationProdibio
Prodibio Carbon-Liq (30 Vials) is a liquid organic carbon source for planted freshwater aquariums that promotes dense plant growth by providing bioavailable carbon for photosynthesis; it can be used with CO2 systems, dosed as one vial weekly per 30-50 gallons.
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SupplementationProdibio
Prodibio Carbon-Liq is a liquid organic carbon source for freshwater aquariums that provides bioavailable carbon for photosynthesis and dense plant growth, used weekly in vial doses and compatible with CO2 systems.
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SupplementationProdibio
A liquid organic carbon source from Prodibio for freshwater planted aquariums, packaged as six single-dose nano vials for tanks up to 5 gallons; it supplies bioavailable carbon that promotes dense plant growth through photosynthesis and can be used alongside CO2 injection systems.
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SupplementationTwo Little Fishies
Aquaforest AF Rocks Mud is an 18 lb box of pest-free natural live rock for marine aquariums.
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SupplementationBrightwell Aquatics
Brightwell Aquatics ChaetoGro is a refugium fertilizer that supplies the nutrients macroalgae like Chaetomorpha need to grow and export nitrates and phosphates from reef aquariums. It helps maintain a thriving refugium that naturally competes with nuisance algae in the display tank.
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SupplementationBoyd Enterprises
Boyd Enterprises Chemi Clean is a liquid treatment that oxidizes organic sludge to remove red slime cyanobacteria stains in fresh and saltwater aquariums, safe for fish, invertebrates, corals, and nitrifying bacteria.
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SupplementationBoyd Enterprises
Boyd Enterprises Chemi Clean is a powder treatment that effectively removes red slime and other cyanobacteria stains (red, black, blue-green, and methane-producing) from fresh and saltwater aquariums within 48 hours by oxidizing trapped organic sludge and promoting ideal enzyme balance. It is completely safe for fish, invertebrates, and corals and will not harm nitrifying bacteria. Available in 2 gram (treats up to 300 gallons) and 6 gram (treats up to 900 gallons); dose one scoop per 10 gallons with heavy aeration, then perform a 20% water change after treatment.
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SupplementationChihiros
The Chihiros Dosing Container Holder is a sturdy metal bracket that keeps dosing bottles neatly organized and secure inside an aquarium cabinet or stand; clean, minimalist design reduces clutter while keeping bottles accessible. Durable metal construction for long-lasting support and a polished look.
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SupplementationChihiros
The Chihiros Dosing Container Kit stores liquid plant fertilizer, water conditioners, and liquid carbon additives; four color-coded 450ml container bottles differentiate macronutrients, micronutrients, iron, and liquid carbon. Non-reactive plastic safe for shrimp, snails, and fish; space-saving organizer holder keeps bottles secure and upright.
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SupplementationChihiros
The Chihiros Dosing Containers keep liquid fertilizers neat and organized; color-coded 450ml bottles make supplements easy to identify, and app compatibility when used in a full system tracks usage, monitors remaining volume, and gives refill reminders. Suitable for freshwater and saltwater aquariums. Dosing bottles only.
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SupplementationChihiros
The Chihiros Dosing Deluxe 4 Color Silicone Tubes keep an automated dosing setup organized; four color-coded high-quality silicone tubes, 3 meters each, make it simple to identify and separate different fertilizers. Flexible and durable for smooth, consistent flow. 2/4mm size.
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SupplementationChihiros
The Chihiros Dosing Flow Adapter automates liquid dosing directly through a canister filter's outflow line; durable aluminum alloy adapter integrates into existing filter plumbing and supports up to four dosing lines. Each port has its own check valve to prevent backflow and ensure leak-free dosing. 12/16mm and 16/22mm sizes.
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SupplementationChihiros
The Chihiros Dosing Magnetic Stirrer keeps liquid fertilizers thoroughly mixed for consistent and accurate dosing; four independent stirring heads keep supplements evenly blended, preventing settling and maintaining uniform nutrient distribution. Quiet, wide temperature range, standard household power; pairs with Chihiros dosing systems. Includes stirring base, power adapter, cable, and 4 magnetic stir bars.
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SupplementationChihiros
The Chihiros Dosing Pumps are the heart of the Chihiros automated dosing system; high-precision peristaltic pump heads deliver controlled volumes of liquid plant fertilizer, trace elements, and water conditioners directly to the aquarium. App-controlled dosing frequency, schedule, and volume via Bluetooth; each head operates independently. 2-head and 4-head configurations, 50mL/min per head.
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SupplementationChihiros
The Chihiros Dosing Tube Holder is an acrylic dosing mount for automated dosing systems; clear high-clarity acrylic construction blends onto the rim of rimless or framed aquariums, locking flexible dosing lines in place to deliver liquid fertilizer, water conditioners, and supplements directly into the water column. Includes 1 acrylic tube holder and flexible dosing tubing.
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SupplementationProdibio
Prodibio Chloral Reset is a water conditioner sold in single-dose glass vials that quickly neutralizes chlorine and chloramines in tap water for both freshwater and saltwater aquariums. It reduces fish stress and protects gills and mucous membranes, making it suitable for aquarium startups and routine water changes.
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SupplementationProdibio
Prodibio Chloral Reset is a natural water conditioner for freshwater or marine aquariums that neutralizes heavy metals, chlorine, and chloramines, dosed 1 vial per 15 gallons.
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SupplementationBrightwell Aquatics
Brightwell Aquatics CichlidCōde is a trace and minor element supplement for African cichlids of Lakes Victoria, Malawi, and Tanganyika, supporting neurological and metabolic reactions and improving coloration without significantly increasing GH or KH.
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SupplementationCO2Art
CO2Art Clear CO2 Resistant Polyurethane Tubing (4/6 mm) provides a safe, reliable connection to CO2 equipment for planted aquariums; it is compatible with all CO2Art regulators and diffusers, available in 10 ft or 20 ft lengths and in clear, black, silver, green, or blue.
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SupplementationEHEIM
The EHEIM CO2 24V night shut-off for powerLED+ is a magnetic (solenoid) valve that switches off the aquarium CO2 supply overnight, for example during the sunset phase when connected to the EHEIM LEDcontrol+ lighting system, saving up to 50% of CO2. It operates silently, is maintenance-free, and includes a non-return valve and a 1.5 m cable.
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SupplementationUltum Nature Systems
2.5 lb CO2 cylinder from Ultum Nature Systems, designed for use with the UNS Pro Dual Stage CO2 Regulator for planted aquariums. Features an on/off valve instead of a pin valve. It is sold empty and must be filled before use.
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SupplementationTwinstar
Acrylic CO2 diffuser for planted aquariums that produces ultra-fine microbubbles through a microporous ceramic membrane for efficient CO2 dissolution. Shatterproof transparent body mounts with a suction cup; compatible with all standard CO2 systems.
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SupplementationEHEIM
The EHEIM CO2 diffuser 600 is a quality glass CO2 diffuser with a separate bubble counter and integrated non-return valve, for aquariums up to 600 litres. Its large diffuser area atomizes CO2 into fine bubbles for optimum, loss-free distribution, and it mounts space-savingly in the tank corner with two powerful suction holders.
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SupplementationDymax
The CO2 Disposable Cartridge Holder is a clear acrylic rim hanger bracket that suspends a lightweight mini disposable CO2 cartridge securely on the aquarium tank rim, eliminating the risk of a top-heavy cylinder tipping over and damaging the regulator; it lifts the cartridge completely off the tabletop and guarantees the cylinder stays upright so liquid CO2 does not flood the regulator's internal seals. Ultra-clear, low-profile transparent lab-grade molded acrylic; designed exclusively for standard 95g threaded mini disposable CO2 cartridges.
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SupplementationCO2Art
The CO2Art CO2 Drop Checker Kit is an ultra-clear low-iron glass drop checker (1.18 in diameter, 2.16 in tall) with pre-mixed drop checker solution and suction cup mount, providing a visual indicator of dissolved CO2 levels in injected aquariums.
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SupplementationISTA
ISTA CO2 Indicator for planted aquariums, providing a visual indication of CO2 concentration to help maintain ideal conditions for aquatic plant growth. Includes the indicator, a 10cc bottle of CO2 indicator solution, and a suction cup mount.
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SupplementationISTA
This 10cc bottle of ISTA CO2 Indicator Solution is the refill reagent for the ISTA CO2 Indicator, changing color to reflect dissolved CO2 concentration in planted aquariums. It is also compatible with other brands of CO2 indicators and drop checkers.
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SupplementationEHEIM
The EHEIM CO2 magnetic valve 24V is a solenoid valve that acts as a night shut-off for a CO2 system, and can also be used with CO2 systems from other brands. It connects to the EHEIM PowerLED+ power supply, runs on safe 24V low voltage, is maintenance-free and quiet in operation, and includes a non-return valve.
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