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.
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
SupplementationBrightwell Aquatics
Brightwell Aquatics Polyp Ignite is a liquid coral supplement rich in amino acids, fatty acids, and natural pigments that stimulates coral feeding response and boosts polyp extension, coloration, growth, and tissue repair for LPS, SPS, and soft corals.
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SupplementationPolyplab
Polyplab Polyp-Booster (100 mL) is a liquid coral feeding additive that triggers rapid feeding responses in LPS and SPS corals, invertebrates, and other marine life within seconds of dosing, helping corals absorb more food per feeding. It contains 18 amino acids, 12 fatty acids, and natural astaxanthin pigment for digestion, health, color, and vibrance; dose 1 mL per 60 gallons 30-60 seconds before Reef-Roids or other coral foods.
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SupplementationPolyplab
PolypLab Polyp-Booster (100 mL) is an additive that rapidly triggers coral feeding responses in corals, inverts, and other marine life within seconds, increasing food absorption each feeding. Contains 18 amino acids, 12 fatty acids, and natural astaxanthin pigment; helps increase LPS/SPS coral color and coloration. Add 1 mL per 60 gallons 30-60 seconds before Reef-Roids or other coral foods.
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SupplementationAquaforest
Aquaforest Polyp-Up (50ml) is a premium coral nutritional supplement designed to enhance polyp extension, coloration, and overall coral health, particularly in SPS corals. Enriched with Omega-3 and Omega-6 fatty acids, vitamins, and amino acids, it encourages long, vibrant polyp extension for easier food capture, while antioxidants intensify pigmentation, especially yellow and orange hues, and protect tissues from oxidative stress. Essential microelements like iron, zinc, manganese, and iodine support metabolic processes critical for coral growth and skeletal development. Dose 1 drop per 100 liters (26 gallons) with lights on; feed corals about 15 minutes after dosing.
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SupplementationBrightwell Aquatics
Brightwell Aquatics Potassion is a highly concentrated ionic potassium solution (80,000 ppm) for reef aquaria. It replenishes potassium depleted by corals and livestock, an element important to aragonite skeletal growth and neurological function.
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SupplementationTropic Marin
Tropic Marin Potassium provides potassium in the aquarium. Potassium is an essential macronutrient for all living organisms, present in natural seawater at 408 mg/L.
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SupplementationKorallen Zucht
Korallen-Zucht Potassium Iodide Fluoride Automatic Elements; potassium, iodide, bromine, and fluorine embedded in a solid carrier substance that releases constantly for up to 4 months. Improves vitality and coloration of all corals, especially blue and green; 1 piece per 50 L.
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SupplementationKorallen Zucht
Korallen-Zucht Potassium Iodide Fluoride Concentrate; designed to enhance turquoise and blue pigments in SPS corals. Contains inorganic and organic iodide, bromine, potassium, and fluorine; maintenance dose is 1 drop per 25 gallons daily.
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SupplementationAquaforest
Aquaforest Pro Bio F (25 mL) is a probiotic bacterioplankton culture medium that stimulates bacterioplankton growth to reduce nitrate and phosphate while feeding corals; dose 1 spoonful per 100 L daily.
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SupplementationAquaforest
Aquaforest Pro Bio S is a highly concentrated probiotic bacteria blend for saltwater aquariums that converts phosphate, nitrate, and organic compounds into biomass removable by a protein skimmer or consumable by corals. It reduces organic sediment on rocks and media, creates a natural biological filter against pathogenic microflora, and supports tank health at one drop per 100 liters daily.
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SupplementationUltum Nature Systems
The Ultum Nature Systems Pro CO2 Manifold Block is a modular add-on that attaches to the UNS Pro Dual Stage CO2 Regulator so a single CO2 cylinder can feed multiple planted aquariums. It combines a detachable bubble counter, built-in check valve and precise needle valve to give each additional tank independent bubble-count control with backflow protection.
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SupplementationUltum Nature Systems
The Ultum Nature Systems Pro Dual Stage CO2 Regulator is a professional-grade CO2 delivery system for planted aquariums, with two gauges for monitoring output pressure and remaining CO2, a failsafe dual-stage mechanism, integrated bubble counter, and solenoid for simple, precise CO2 dosing. It fits standard CGA-320 CO2 cylinders and features a bubble counter manifold that can be expanded with manifold blocks to distribute CO2 to multiple aquariums from one cylinder; includes extra O-rings, bubble counter, Allen key, CGA-320 adapter, and power adapter.
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SupplementationUltum Nature Systems
The Ultum Nature Systems Pro Mini Dual Stage CO2 Regulator is an all-in-one CO2 delivery solution for planted aquariums. It features a dual stage failsafe mechanism, built-in solenoid, and included bubble counter for simple, precise CO2 management, and works with standard CGA-320 CO2 cylinders and paintball canisters. Includes adapters, extra washer O-rings, allen key, and power adapter.
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SupplementationTropic Marin
Tropic Marin Pro-Coral A- Trace 2 is a ready-to-dose liquid supplement of essential anionic trace elements (bromine, fluorine, iodine, lithium, molybdenum, selenium, vanadium) for reef aquariums. Paired with Pro-Coral K+ Trace 1, it replenishes trace elements depleted by coral growth at 1 mL per 100 L daily, supporting natural coral color and growth (available in 200 mL, 500 mL, and 1000 mL).
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SupplementationTropic Marin
Tropic Marin Pro-Coral K+ Trace 1 is a liquid supplement of essential cationic trace elements (barium, boron, chromium, cobalt, iron, copper, manganese, nickel, strontium, and zinc) that corals and invertebrates rapidly deplete in reef aquariums. It is doser-ready with no mixing required; dose 1 mL per 25 gallons daily alongside Pro-Coral A- Trace 2 (maximum 2 mL per 25 gallons/day) to support natural coral color and growth.
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SupplementationTropic Marin
Tropic Marin Pro-Coral Mineral provides the trace elements present in Tropic Marin sea salt in crystalline, highly concentrated form, creating ideal living conditions for all invertebrates beyond normal water changes. Strengthens growth, color intensity, and resistance of invertebrates.
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SupplementationCO2Art
The CO2Art Pro-Elite Series V2 Dual Stage CO2 Regulator offers stable CO2 delivery for planted aquariums with dual stainless steel gauges, integrated needle valve, bubble counter with check valve, 12V DC solenoid, extendable manifold block, and CGA320 threads, backed by a 10-year warranty.
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SupplementationCO2Art
The CO2Art PRO-SE Series Dual Stage CO2 Regulator provides automated CO2 injection for planted aquariums with an integrated 12V DC solenoid, dual pressure gauges, needle valve, bubble counter with built-in check valve, and end-of-tank-dump prevention.
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SupplementationCO2Art
The CO2Art Pro-Series Adapter Repair Kit contains replacement parts for SodaStream and paintball CO2 adapters. It includes a seal washer, hex key, two rubber o-rings, and a black hex nut for leak-free reassembly.
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SupplementationCO2Art
The CO2Art Pro-Series CO2 Adapter connects paintball or SodaStream bottles to all CO2Art regulators with an elbow design for horizontal installation, unibody construction to eliminate thread leaks, and built-in adjustable ON/OFF pin valve.
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SupplementationCO2Art
The CO2Art Pro-Series Precision CO2 Check Valve allows CO2 to flow in only one direction, protecting regulators and solenoids from water backflow damage; resistant to 100 psi with 1 psi cracking pressure and easy push-in connectors.
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SupplementationCaribSea
CaribSea Purple Up (250 ml) uses a patented dual-method approach to accelerate coralline algae growth in marine aquariums. Ionic calcium immediately raises dissolved calcium while 10-micron Super Sea Calcium aragonite powder dissolves on live rock, delivering calcium, strontium, magnesium and carbonate where needed, and it replenishes iodine essential for coralline algae tissue. It is not a fertilizer and does not promote nuisance algae.
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SupplementationCaribSea
CaribSea Purple Up (500 ml) uses a patented dual-method approach to accelerate coralline algae growth in marine aquariums. Ionic calcium immediately raises dissolved calcium while 10-micron Super Sea Calcium aragonite powder dissolves on live rock, delivering calcium, strontium, magnesium and carbonate where needed, and it replenishes iodine essential for coralline algae tissue. It is not a fertilizer and does not promote nuisance algae.
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SupplementationQanvee
The Qanvee CO2 Inline Atomizer delivers an ultra-fine microscopic gas mist directly into the water column, mounting inline on a canister filter return hose so CO2 dissolves before reaching the aquascape. Its machined polymer housing with a fine ceramic core produces dense micro-bubbles, requires minimum 30 PSI operating pressure, and is available in M1 (12/16mm) and M2 (16/22mm) sizes with replacement ceramic cores.
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SupplementationAPI
API Quick Start contains unique, patented live nitrifying bacteria that immediately start the aquarium cycle and allow instant addition of fish to new freshwater or saltwater aquariums. It is scientifically proven to quickly consume harmful ammonia and nitrite to help prevent new tank syndrome, limits toxic ammonia and nitrite levels, and requires no refrigeration. 8 oz bottle.
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SupplementationAlgaeBarn
The AlgaeBarn RapidCycle Aquarium Cycle Kit is a live nitrifying bacteria starter available in 1, 4, 16, and 32 oz sizes. It seeds the aquarium with beneficial bacteria to quickly establish the nitrogen cycle and safely convert ammonia and nitrite in new or restarted tanks.
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SupplementationBrightwell Aquatics
Brightwell Aquatics Razor Freshwater is a plant-safe systemic cleaning polymer that loosens debris and coatings from aquarium surfaces and flocculates particulate matter, safe for freshwater and brackish systems but not for use with crustaceans.
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SupplementationTwo Little Fishies
Two Little Fishies ReBorn Calcium Reactor Media is a premium aragonite media made from sustainably collected fossilized coral skeletons, closely matching the natural composition of reef-building materials. Its coarse, highly porous structure promotes excellent water flow and even CO2 penetration so the media dissolves evenly, releasing calcium, carbonate alkalinity, and beneficial trace elements for coral skeletal growth; available in 8.8 lb and 44 lb sizes for saltwater aquariums.
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SupplementationBlue Life USA
Blue Life USA Red Cyano Rx is a reef-safe powdered treatment that quickly eliminates disease-causing cyanobacteria from live rock, coral, and sand in saltwater aquariums without discoloring the water or harming inhabitants or beneficial bacteria when used as directed. Dose one level scoop per 10 gallons after siphoning out visible cyano (with skimmer off and carbon/ozone discontinued), then perform a 25% water change after 24 hours; one container treats 400 gallons.
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SupplementationRed Sea
Red Sea KH Coralline Gro (500 mL) is a liquid supplement that boosts coralline algae growth in soft coral or fish-only saltwater aquariums, giving the tank an established look while helping discourage nuisance algae. It contains a complex of carbonate buffers, potassium, and trace elements; 1 mL raises the alkalinity of 25 gallons by 0.1 dKH.
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