Aquarium Supplementation

Explore plant fertilizers, liquid CO2, reef dosing pumps and supplements used by aquarists.

+ Add custom equipment

Build your setup

Explore by category

Find the gear behind the community's tanks.

All categories →

In community tanks

Chosen by aquarists

Popular equipment · Supplementation

607 matching items · Most used first

Black CO2 Resistant Polyurethane TubingSupplementation

CO2Art

Black CO2 Resistant Polyurethane Tubing

CO2Art Black CO2 Resistant Polyurethane Tubing is 4/6 mm high-quality CO2-resistant tubing for safe connection to CO2 equipment, compatible with all CO2Art regulators and diffusers, available in 10 or 20 foot lengths.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Block Molybdenum Concentrated SolutionSupplementation

Tropic Marin

Block Molybdenum Concentrated Solution

Tropic Marin Block Molybdenum is a concentrated trace element solution for reef aquariums that restores molybdenum, rubidium, vanadium, tungsten, tellurium, and hafnium in balanced proportions. It comes in a 1000 ml bottle with a dropper cap for manual dosing or use with a dosing pump.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Block Strontium Concentrated SolutionSupplementation

Tropic Marin

Block Strontium Concentrated Solution

Tropic Marin Block Strontium is a concentrated solution that replenishes strontium and barium in reef aquariums, essential for healthy skeletal growth in corals and other marine animals. It doses with an easy dropper cap, manually or with a dosing pump, in balanced proportions.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Blue CO2 Resistant Polyurethane TubingSupplementation

CO2Art

Blue CO2 Resistant Polyurethane Tubing

CO2Art Blue CO2 Resistant Polyurethane Tubing is 4/6 mm high-pressure tubing for planted aquarium CO2 systems. It resists becoming brittle or leaking under CO2 pressure and is compatible with all CO2Art regulators and diffusers.

0 showcased tanks

Add to my tank

Sign in to choose your tank

BM-T11 Dosing PumpSupplementation

Bubble Magus

BM-T11 Dosing Pump

The Bubble Magus BM-T11 Dosing Pump has ±5% accuracy, 1-1999 mL flow range, up to 24 cycles per day, German medical-grade tubing, expandability to 11 channels with the BM-T12 slave unit, and motor/tubing/board alarms.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Brightwell Reef Dosing BundleSupplementation

Brightwell Aquatics

Brightwell Reef Dosing Bundle

The Brightwell Reef Dosing Bundle is a starter set for maintaining stable water chemistry in growing reef aquariums. It combines Reef Code A-P and Reef Code B-P, a balanced dry two-part system that maintains the calcium and alkalinity demands of corals and other calcifying organisms, with Replenish, a liquid trace and minor mineral supplement that supports coral health and coloration. Includes Reef Code A-P (500 g), Reef Code B-P (500 g), and Replenish (250 mL).

0 showcased tanks

Add to my tank

Sign in to choose your tank

Brightwell Substrate Nutrient BundleSupplementation

Brightwell Aquatics

Brightwell Substrate Nutrient Bundle

The Brightwell Substrate Nutrient Bundle is a three-product starter set for planted aquariums: Erase-CL (250 mL) removes chlorine/chloramines, FlorinBase Laterite Powder (600 g) adds iron-rich minerals to substrate, and FlorinGro (250 mL) supplies water column nutrients.

0 showcased tanks

Add to my tank

Sign in to choose your tank

BRS 2 Part Doser - 1.1 mL per minuteSupplementation

Bulk Reef Supply

BRS 2 Part Doser - 1.1 mL per minute

The BRS 1.1 mL dosing pump is a very cost-effective yet long lasting stand-alone dosing pump perfect for trace elements and 2 part. By hooking the pump up to a simple timer or aquarium controller they can be one of the most inexpensive ways to get into an automated 2 part dosing system. With their peristaltic design, they will not back siphon and provide extremely accurate flow rates.

0 showcased tanks

Add to my tank

Sign in to choose your tank

BRS DIY Kalkwasser Dripper KitSupplementation

Bulk Reef Supply

BRS DIY Kalkwasser Dripper Kit

The BRS DIY Kalkwasser Dripper Kit lets you build a kalkwasser dripper using your own storage container with lid, to slowly drip a daily dose of limewater into the tank (useful without an ATO or with ATOs incompatible with kalk). It contains a 16" 1/4" clear acrylic tube, 1/4" Mur-lok inline ball valve, two push-connect bulkhead tank adapters, Mur-lok elbow fittings, and 5 ft of blue 1/4" tubing.

0 showcased tanks

Add to my tank

Sign in to choose your tank

BRS Dosing Tube LubricantSupplementation

Bulk Reef Supply

BRS Dosing Tube Lubricant

BRS Dosing Tube Lubricant is a silicone-based lubricant applied to the rollers and tubing inside dosing pump heads to extend the life of the tubing and the entire pump. Compatible with Drew's Doser, BRS 1.1mL and 50mL dosing pumps, Bubble Magus, and most other dosing pump heads; add a few small drops every few weeks.

0 showcased tanks

Add to my tank

Sign in to choose your tank

BRS Drew's Doser Tubing - Pre-CutSupplementation

Miscellaneous

BRS Drew's Doser Tubing - Pre-Cut

BRS Drew's Doser Tubing - Pre-Cut is clear extension tubing (1/4 in OD, 1/8 in ID) for Drew's Doser, available in 25 ft and 50 ft pre-cut lengths for replacing worn tubing or switching additives.

0 showcased tanks

Add to my tank

Sign in to choose your tank

BRS Pharma Balling Method Bulk Total PackageSupplementation

Bulk Reef Supply

BRS Pharma Balling Method Bulk Total Package

The BRS Pharma Balling Method Bulk Total Package is a complete hybrid Balling kit that maintains calcium, alkalinity, magnesium, and trace elements in reef aquariums using pharmaceutical-grade ingredients. It makes up to 7 gallons each of liquid calcium and soda ash alkalinity solutions, 2 gallons of magnesium mix, and 10 gallons of Tropic Marin Part C, and includes Tropic Marin Pro-Coral trace elements, four 1-gallon mixing jugs, dispensing pumps, measuring cups, and a funnel, with dosing amounts calculated from measured daily consumption of calcium and alkalinity.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Bubble Counting CO2 DiffuserSupplementation

Seachem

Bubble Counting CO2 Diffuser

The Seachem Bubble Counting CO2 Diffuser is a pollen-style glass diffuser with a 17mm ceramic disc that disperses CO2 into planted aquariums up to 20 gallons. Its built-in bubble counter lets you monitor injection rate without a separate counter, mounting low in the tank via suction cup and connecting to standard 1/4" CO2 tubing (check valve not included).

0 showcased tanks

Add to my tank

Sign in to choose your tank

Bulk Pharma Calcium Chloride 35 PoundsSupplementation

Bulk Reef Supply

Bulk Pharma Calcium Chloride 35 Pounds

Bulk Pharma Calcium Chloride 35 Pounds is an ultra-pure pharma-grade calcium additive for reef aquariums, used in 2-part dosing to replenish the calcium corals consume as they grow. It mixes fast and crystal clear with no residue and makes up to 32 gallons of BRS calcium liquid solution.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Bulk Pharma Kalkwasser (38 Pounds)Supplementation

Bulk Reef Supply

Bulk Pharma Kalkwasser (38 Pounds)

BRS Bulk Pharma Kalkwasser is a 38-pound bulk package of ultra-pure pharmaceutical-grade calcium hydroxide for reef aquarium calcium and alkalinity dosing via kalkwasser dripper, stirrer, or top-off. Made from an ultra-pure source with extremely low aluminum compared to typical calcium hydroxide, it replenishes the calcium and alkalinity corals consume while also helping raise pH.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Bulk Pharma Magnesium Chloride 35 PoundsSupplementation

Bulk Reef Supply

Bulk Pharma Magnesium Chloride 35 Pounds

Bulk Pharma Magnesium Chloride 35 Pounds is an ultra-pure pharma-grade magnesium additive for reef aquariums. Maintaining proper magnesium levels helps balance calcium and alkalinity by preventing excess calcium carbonate precipitation; it is used together with BRS Pharma Magnesium Sulfate and mixes crystal clear with no residue.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Bulk Pharma Magnesium Sulfate 35 PoundsSupplementation

Bulk Reef Supply

Bulk Pharma Magnesium Sulfate 35 Pounds

BRS Bulk Pharma Magnesium Sulfate is an ultra-pure, pharmaceutical-grade magnesium additive for reef tanks in a 35-pound resealable package. The fine powder dissolves fast and crystal clear with no residue, and is used with magnesium chloride to maintain magnesium levels that keep calcium and alkalinity in balance.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Bulk Pharma Magnesium Sulfate 7 PoundsSupplementation

Bulk Reef Supply

Bulk Pharma Magnesium Sulfate 7 Pounds

BRS Bulk Pharma Magnesium Sulfate (7 lbs) is an ultra-pure, pharmaceutical-grade fine powder used alongside BRS Magnesium Chloride to make liquid magnesium solutions for reef aquariums. It dissolves fast and crystal clear with no residue, helping maintain the magnesium-calcium-alkalinity balance; mix with magnesium chloride in RO/DI water and dose up to 100 ppm per day.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Bulk Pharma Soda Ash 27 PoundsSupplementation

Bulk Reef Supply

Bulk Pharma Soda Ash 27 Pounds

Bulk Pharma Soda Ash 27 Pounds is an ultra-pure pharma-grade alkalinity additive for reef aquariums, used in 2-part dosing to replenish the alkalinity corals consume as they grow. It mixes fast and crystal clear with no residue and makes over 30 gallons of BRS soda ash liquid alkalinity solution.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Bulk Pharma Sodium Bicarbonate 7 PoundsSupplementation

Bulk Reef Supply

Bulk Pharma Sodium Bicarbonate 7 Pounds

BRS Bulk Pharma Sodium Bicarbonate (7 lbs) is a pharmaceutical-grade alkalinity additive for reef aquariums, part of the BRS 2-part dosing system that replenishes the alkalinity corals consume as they grow. It mixes crystal clear with no residue (1 cup plus 2 tbsp per gallon of RO/DI water yields over 12 gallons of liquid alkalinity solution) and is preferred for large alkalinity corrections or for tanks with pH over 8.4.

0 showcased tanks

Add to my tank

Sign in to choose your tank

BYOTIC (75g)Supplementation

Nyos

BYOTIC (75g)

NYOS BYOTIC is a super-concentrated probiotic bacteria additive (75 g) that restores the natural biological bacterial balance in reef aquariums, targeting the bacterial imbalances and pathogenic germs (e.g., vibrios) behind unexplained coral loss. The highly pure formula supports better polyp expansion and coral vitality without adding phosphate; dissolve in tank water before dosing, using 1 g/25 gal daily for 3-5 days for problems then 0.5 g/25 gal until resolved, or 0.5 g/25 gal weekly as a preventative.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Calcium+Supplementation

Nyos

Calcium+

Nyos Calcium+ is a high-purity, additive-free calcium chloride powder for reef aquariums, designed to raise calcium levels as part of a 2-part dosing system. It can be dosed dry into the sump or pre-mixed into a concentrated solution with RODI water, and is available in 1000g and 4000g sizes.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Calcium+ (1000g)Supplementation

Nyos

Calcium+ (1000g)

Nyos Calcium+ is 1000g (2.2 lbs) of high-purity calcium chloride powder for raising calcium levels in reef aquariums, ideal for two-part dosing systems with zero added additives. Dosing 37g directly raises calcium by 10 ppm in a 100-gallon tank, or it can be pre-mixed (1000g into 2000 mL RODI water for a ~135,000 ppm stock solution).

0 showcased tanks

Add to my tank

Sign in to choose your tank

Cap for 1 Gallon JugSupplementation

Bulk Reef Supply

Cap for 1 Gallon Jug

A plastic replacement screw cap for BRS 1-gallon jugs (1.65" diameter), also compatible with BRS space saver 4-quart jugs, for storing aquarium dosing solutions and other liquids.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Carbo-Calcium Powder Calcium and Alkalinity Additive 1400 gmSupplementation

Tropic Marin

Carbo-Calcium Powder Calcium and Alkalinity Additive 1400 gm

Tropic Marin Carbo-Calcium Powder (1400 g) is a concentrated single-solution calcium and alkalinity additive; balanced ratio of calcium and carbonate released by biological processes without precipitation or oxygen depletion; no byproducts, excess CO2, phosphates, nitrates, or salinity increase (no sodium chloride); stable pH. 6 level spoons per liter RODI water makes the liquid solution; the 1400 g can makes 10 liters. Start with 5 mL solution per 100 L daily, increasing by 2.5 mL per 100 L until constant alkalinity of 7-9 dKH; max 25 mL per 100 L per day; dosing-pump ready once mixed; can be added directly to high-flow areas in larger systems.

0 showcased tanks

Add to my tank

Sign in to choose your tank

Carbo-Calcium Powder Calcium and Alkalinity Additive 700 gmSupplementation

Tropic Marin

Carbo-Calcium Powder Calcium and Alkalinity Additive 700 gm

Tropic Marin Carbo-Calcium Powder 700 g mixes into 5 litres of solution that supplies balanced calcium and carbonate (alkalinity) in a single dose without precipitation or salinity increase. Start at 5 ml per 100 L daily, adjusting to hold 7-9 dKH; suitable for all corals and dosing pumps.

0 showcased tanks

Add to my tank

Sign in to choose your tank