Explore plant fertilizers, liquid CO2, reef dosing pumps and supplements used by aquarists.
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Find the gear behind the community's tanks.
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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
SupplementationUltum Nature Systems
CO2 paintball cylinder from Ultum Nature Systems, designed for use with the UNS Pro Mini 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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SupplementationNot specified
The CO2 Perma-Seal O-Ring is a high-pressure permanent cylinder connection washer engineered for standard North American CGA-320 CO2 gas cylinders; it replaces flimsy disposable plastic washers with a heavy-duty permanent seal that never requires routine replacements, guarding against catastrophic gas leaks and keeping the dosing rate rock-solid. Installs with a standard Allen wrench before threading on the regulator. Compatible with UNS Mini and UNS Pro Dual Stage Regulators. 1 Pack through 20 Pack.
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SupplementationNot specified
CO2 Proof Tubing - Black is a durable polyurethane tubing designed specifically for use with CO2 regulators; unlike regular airline tubing, it prevents CO2 from permeating through the membrane. Precise fitting onto the regulator's output line prevents the tubing from popping off under high pressure. 4mm inner / 6mm outer diameter. 5 Ft or 10 Ft.
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SupplementationNot specified
CO2 Proof Tubing - Blue is a durable tubing designed specifically for use with CO2 regulators; unlike regular airline tubing, it prevents CO2 from permeating through the membrane. Precise fitting onto the regulator's output line prevents the tubing from popping off under high pressure. Designed for UNS Pro and Mini Dual Stage Regulators. 4mm inner / 6mm outer diameter. 5 Ft or 10 Ft.
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SupplementationNot specified
CO2 Proof Tubing - Clear is a durable polyurethane tubing designed specifically for use with CO2 regulators; unlike regular airline tubing, it prevents CO2 from permeating through the membrane. Precise fitting onto the regulator's output line prevents the tubing from popping off under high pressure. 4mm inner / 6mm outer diameter. 5 Ft or 10 Ft.
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SupplementationUltum Nature Systems
The CO2 Regulator - Pressure Plate Spare Parts Set is a precision repair kit that restores a CO2 regulator's internal pressure plate to factory specifications; it resolves zero output pressure failures caused by locked, fatigued, or unseated internal pressure mechanisms. Universal dual compatibility across the UNS Mini and UNS Pro Dual Stage Regulators; cost-effective alternative to replacing the regulator body.
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SupplementationTunze
Tunze 7077.3 CO2 regulator providing precise pressure control for standard CGA 320 CO2 cylinders, made in Germany. Features tool-free hand-tight installation, dual gauges displaying cylinder and working pressure, a fine adjustment screw, and an integrated pressure-relief valve.
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EHEIM
The EHEIM CO2 SET400 is a complete reusable CO2 fertilization system for aquariums, supplied without the bottle. It includes a precision pressure reducer with manometers and precise dosing valve, a 360-degree rotating hose connection, 3 m of pressure-resistant CO2 safety hose, a safety diffuser with bubble counter and non-return valve, water test strips, and a CO2 long-term test with indicator reagent for permanent CO2 measurement.
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SupplementationISTA
The ISTA CO2 Starter Set is an affordable, beginner-friendly CO2 system for nano planted aquariums that uses a disposable CO2 can (no refilling). The set includes the disposable CO2 can, tubing, check valve, CO2 diffuser, and 2 suction cups; the diffuser should be placed at the bottom of the tank for best diffusion.
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SupplementationISTA
ISTA CO2 Supply Set with a 45g pressurized CO2 cartridge, designed as a hassle-free CO2 solution for nano tanks and first-time CO2 users. Includes the cartridge, supporting rack, regulator, 2-in-1 CO2 diffuser and bubble counter, and tubing.
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SupplementationARCHAEA
The CO2 system kit with ARCHAEA AccuPRO II Compact CO2 dual gauge regulator includes the AccuPRO II regulator, AccuPRO metal bubble counter (screw-on type), a brand-new 5 lb or 10 lb aluminum CO2 cylinder, ADA clear parts set, ADA CO2 pressure-proof tubing, and a Twinstar New CO2 diffuser. A complete CO2 supply system for planted aquariums; the aluminum cylinders are supplied unfilled and can be refilled locally.
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SupplementationARCHAEA
The CO2 system kit with Archaea CO2 regulator (PRO) single gauge includes the regulator, AccuPRO metal bubble counter (in-line type), a brand-new 5 lb aluminum CO2 cylinder, ADA clear parts set, ADA CO2 pressure-proof tubing, and a Twinstar New CO2 diffuser Medium. A complete CO2 supply system for planted aquariums; the cylinder is supplied unfilled and can be refilled locally.
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SupplementationEHEIM
EHEIM CO2 hose, 3 metres long with 4/6 mm diameter, for connecting the components of a CO2 fertilization system in the aquarium.
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SupplementationEHEIM
The Eheim CO2 long-term test set is a complete kit for continuously monitoring CO2 levels in the aquarium, including a drop checker with suction cup, 10 ml of indicator liquid (about 90 applications) and three 5-in-1 water test strips for determining carbonate hardness. Made in Germany.
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SupplementationEHEIM
The EHEIM CO2 pressure reducer with manometers is a precision pressure reducer for 500 g and 2000 g reusable CO2 bottles, suitable for the EHEIM CO2 SET 400 and CO2 SET 600 fertilizer systems. It has two pressure gauges showing working (system) and cylinder pressure, an EHEIM bubble counter for precise and continuous CO2 dosing, and a 360-degree rotating hose connection with tool-free assembly.
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SupplementationEHEIM
The EHEIM CO2 diffuser 400 is a small, effective CO2 diffuser with an integrated bubble counter and non-return valve, for small and medium aquariums up to 400 litres. It atomizes CO2 into fine bubbles so it dissolves quickly in the water, and attaches to the aquarium pane with a powerful suction holder.
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SupplementationEHEIM
The EHEIM CO2 SET600 is a complete reusable CO2 fertilization system for aquariums, supplied without the bottle. It includes a precision pressure reducer with manometers and precise dosing valve, a 360-degree rotating hose connection, 3 m of pressure-resistant CO2 safety hose, a safety diffuser with bubble counter and non-return valve, water test strips, and a CO2 long-term test with indicator reagent for permanent CO2 measurement.
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SupplementationPolyplab
PolypLab Colors is an intense ultra-pure group of amino acids designed for demanding coral growers and ultra-low-nutrient systems. It promotes tissue and polyp pigment extension and helps damaged corals heal faster; dose 1 drop per 100 gallons daily, with caution against excess that can cause algae blooms.
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SupplementationAquaforest
Aquaforest Component 1+ (5L) is one part of a three-part Balling-method calcium, alkalinity, magnesium, and trace element system, containing calcium plus strontium, barium, and other trace metals for coral health.
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SupplementationAquaforest
The Aquaforest Component 1+, 2+, 3+ Bundle provides balanced solutions for calcium, alkalinity, and magnesium plus major and minor trace elements based on the Balling Method; 5000 mL each, dose ~50 mL per 100 L per component daily, separating additions by 1 hour.
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SupplementationAquaforest
Aquaforest Component 3in1 is an all-in-one Balling-method supplement combining calcium, magnesium, and KH with trace elements in balanced proportions. It maintains stable reef chemistry for strong coral skeletal development, growth, and coloration while replacing multiple dosing bottles; dosed at 5 mL per 100 L daily.
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SupplementationAquaforest
Aquaforest Component A is a balanced strontium and barium supplement that accelerates coral and filter-feeder growth; dose weekly in equal proportions with Components B and C, keeping a 5-minute interval between doses.
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SupplementationAquaforest
Aquaforest Component B is a balanced mixture of trace heavy metals (cobalt, copper, chrome, manganese, zinc, nickel, iron) that accelerates coral growth and coloration, dosed 5 mL per 100 L weekly with Components A and C.
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SupplementationAquaforest
Aquaforest Component C is a balanced mixture of iodine and fluorine that keeps these trace elements at natural seawater levels and strengthens blue, violet, and white coloration in SPS corals.
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SupplementationAquaforest
Aquaforest Component Strong A, B, C, K is a four-bottle microelement supplement kit (4 x 75 mL) that replenishes the trace elements needed for coral growth and coloration when used with Aquaforest Calcium, KH Buffer, Magnesium, and Reef Mineral Salt. Component A is strontium/barium, B is heavy metals, C is iodine/fluorine, and K is potassium for blue and purple coral coloration.
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SupplementationAquaforest
Aquaforest Components Strong (4 x 250 mL) is a concentrated trace element set for reef aquariums using the Balling method. The four solutions supply strontium, barium, heavy metals, iodide, fluoride, and potassium to complement Calcium, Magnesium, KH Buffer, and Reef Mineral Salt dosing.
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SupplementationKorallen Zucht
Korallen-Zucht Coral Booster; concentrated trace element supplement designed to support coral coloration, growth, and overall health, particularly blue and pink coloration. Dose 1 mL per 25 gallons every other day; pairs well with KZ Flatworm Stop.
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SupplementationKorallen Zucht
Korallen Zucht Coral Booster (250 ml) is a special blend of elements to stimulate all corals for enhanced coloration, growth and immune response. Balances elemental deficiencies, enhances blue and pink coloration, complements Flatworm Stop, and provides trace elements; dosage 1 mL per 25 gallons every other day.
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SupplementationAquaforest
Five-product Aquaforest reef supplementation and nutrition system (AF Amino Mix, AF Build, AF Energy, AF Vitality, and Polyp Up). Supports coral growth, coloration, metabolism, skeletal development, and polyp extension in SPS and LPS reef aquariums.
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SupplementationBrightwell Aquatics
Brightwell Aquatics Coral Inertia NRG+ is an all-in-one liquid coral superfood with proteins, amino acids, omega-3s (EPA/DHA), vitamins, and natural pigments to boost growth, coloration, reproduction, and tissue recovery in LPS and SPS corals, doser-friendly with no refrigeration required.
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