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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
SupplementationSeachem
Seachem Flourish Tabs (10-pack) dry tablet-form substrate supplement inserted into gravel for direct, time-released root fertilization. Rich in iron, manganese, magnesium, calcium, potassium, vitamins, and amino acids; no phosphate or nitrate.
5 showcased tanks
Emerald Ridge60 gallons · Planted
Malawi Shallows10 gallons · Planted
Amber Caridina55 gallons · Planted
Blackwater Garden15 gallons · Planted
DIY
1 showcased tanks
Coralvue
1 showcased tanks
SupplementationTropic Marin
The 10 Liter DIY All-For-Reef Kit from Tropic Marin contains the base components to mix 10 liters of All-For-Reef dosing solution at home: 1,400 grams of Carbo-Calcium, 1 lb of Bio-Magnesium, 1,000 mL of Pro-Coral Trace A, and 1,000 mL of Pro-Coral Trace K. Using specialized organic calcium salts, the mixed solution supplies balanced calcium and alkalinity plus all minor and trace elements in a single all-in-one dose without increasing salinity or causing pH spikes.
0 showcased tanks
SupplementationKorallen Zucht
Korallen-Zucht Coral Snow (100 mL) — A liquid secondary biological facilitator for elements like B-Balance or potassium-iodide/fluoride concentrate. It reduces harmful toxins released by cyanobacteria, neutralizes undesirable acids, and helps against slime algae and cyanobacteria.
0 showcased tanks
SupplementationDr. Tim's Aquatics
The Dr. Tim's 120 Gallon Cyanobacteria Treatment Bundle uses the bacterial strains in Re-Fresh and Waste-Away to naturally outcompete unwanted cyanobacteria, breaking down excess nutrients for export via skimming without harsh chemicals. Includes Dr. Tim's Re-Fresh (4 oz), Waste-Away (8 oz), and a treatment recipe card for the 14-day regimen.
0 showcased tanks
SupplementationAPI
API Marine Melafix is a safe, natural medication with Melaleuca (tea tree) extract used to treat bacterial infections in saltwater fish and corals. It includes Aloe Vera to promote regeneration of damaged fish tissue; 16oz treats 948 US Gallons of Saltwater.
0 showcased tanks
SupplementationISTA
ISTA 1L CO2 Supply Set — A CO2 supply kit for thriving aquariums. Designed for both novice and experienced aquarists.
0 showcased tanks
SupplementationKorallen Zucht
Korallen-Zucht KH Plus Concentrate (1 L) is a ready-to-use liquid solution that raises or maintains carbonate hardness (alkalinity) in reef aquariums, supporting coral skeleton growth, coral health and system stability. Designed for small to medium systems or moderate alkalinity demand, it is dosed by hand or with a dosing pump (max 1 ml per 25 gallons daily), complementing the ZEOvit system.
0 showcased tanks
SupplementationESV Aquarium Products
ESV B-Ionic Calcium Buffer System is a two-part alkalinity and calcium solution used in equal amounts to maintain reef-aquarium chemistry and help replace ions lost through protein skimming. The package includes one gallon of each component; the recommended starting dose is 1 mL of each per four gallons daily, adjusted through regular calcium and alkalinity testing.
0 showcased tanks
SupplementationISTA
ISTA 2 in 1 CO2 Bubble Counter & Check Valve — Versatile dual-function device serving both as a CO2 bubble counter and a check valve. Durable acrylic material provides clear, easy bubble reading.
0 showcased tanks
SupplementationOXO
The OXO 2 Part Scale is a compact kitchen scale for accurately weighing 2-part aquarium additives, with 5 lb capacity, 1/8-oz and 1-gram increments, zero function, pull-out display, and 2 AAA batteries included.
0 showcased tanks
SupplementationReef Octopus
The Reef Octopus 250PRO Commercial Calcium Reactor is developed for the commercial sector including public aquariums, fish farms, and aquaculture centers up to 1,500 US gallons. High-performance reverse flow design with Water Blaster 7000 recirculation pump (70W, 2-year pump warranty, silicone carbide shafts/bearings); equipped with pH probe holder, built-in bubble counters, and independent flow valves; media capacity 25 L (6.6 gal), required feed pump 600-1000 GPH; footprint 18.1 x 17.3 in, height 43.3 in.
0 showcased tanks
Supplementation2HR Aquarist
2HR Aquarist APT 1 Zero is a concentrated daily liquid fertilizer for planted aquariums; nitrate and phosphate-free, providing soluble potash, magnesium, and chelated iron for balanced nutrition in new or fish-heavy tanks. Shrimp and snail safe; 300 ml bottle.
0 showcased tanks
Supplementation2HR Aquarist
2HR Aquarist APT 3 Complete is an all-in-one liquid fertilizer for densely planted aquariums; its calibrated Capstone Formula supplies nitrogen, phosphorus, potassium, magnesium, and triple-chelated iron. Shrimp, snail, and fish safe; 300 ml bottle.
0 showcased tanks
SupplementationSimplicity
The Simplicity 2L Modular Dosing Container is a clear acrylic vessel for storing aquarium dosing solutions, 2-part supplements, top-off water, or nutrient additives. Its modular design connects multiple units in series, with liter and ounce graduations, a snug lid, strong PVC hose connectors, and integrated holders for optional float switches.
0 showcased tanks
SupplementationBulk Reef Supply
BRS 2-Part Pharma Calcium & Alkalinity Bulk Total Package with Dosers — Same total package plus two BRS 1.1 mL dosing pumps for automated daily dosing. Includes additives, mixing jugs, dispensing pumps, and a funnel.
0 showcased tanks
SupplementationBulk Reef Supply
The BRS 2-Part Pharma Calcium & Alkalinity Starter Package includes pre-measured pharmaceutical-grade calcium chloride, soda ash, and magnesium mixes with jugs, dispensing pumps, and a funnel to start daily 2-part reef dosing.
0 showcased tanks
SupplementationBulk Reef Supply
BRS 2-Part Pharma Calcium & Alkalinity Total Package Pre-Portioned — Pre-portioned containers of calcium, alkalinity, and magnesium to make your own 2-part liquid dosing solutions. Just pour one of each container into separate mixing jugs, top off with water, and you are ready for daily 2-part dosing.
0 showcased tanks
SupplementationBulk Reef Supply
BRS 2-Part Pharma Calcium & Alkalinity Total Package Pre-Portioned with Dosers — Pre-portioned containers of calcium, alkalinity, and magnesium plus two BRS 1.1 mL dosing pumps for automated daily dosing. Includes gallon mixing jugs and dispensing pumps.
0 showcased tanks
SupplementationISTA
The ISTA 3 in 1 CO2 Diffuser combines a bubble counter, a check valve, and a ceramic diffuser into a single compact unit for planted freshwater aquariums. It produces a fine mist of CO2 bubbles for maximum diffusion, mounts with included suction cups, and its replaceable ceramic plate allows years of continued use.
0 showcased tanks
SupplementationTropic Marin
Tropic Marin Phos-Feed (300g) is a powdered phosphate supplement modeled on how natural reefs supply corals with insoluble phosphate particulates, delivering phosphate directly to corals without continuously raising the water column's phosphate concentration. It stimulates coral skeletal and tissue growth with natural skeletal patterns and brighter colors, and includes trace elements (iodide, fluoride, bromide); start with 1 mL per 50 gallons daily, ideally after lights-out, targeting 0.05-0.15 ppm phosphate.
0 showcased tanks
SupplementationReef Octopus
The Reef Octopus 300PRO Commercial Calcium Reactor is developed for the commercial sector including public aquariums, fish farms, and aquaculture centers up to 2,700 US gallons. High-performance reverse flow design with Water Blaster 10000 recirculation pump (125W, 2-year pump warranty, silicone carbide shafts/bearings); pH probe holder, built-in bubble counters, independent flow valves; media capacity 45 L (12 gal), required feed pump 600-1000 GPH; footprint 22.1 x 21.3 in, height 49.3 in.
0 showcased tanks
SupplementationESV Aquarium Products
The ESV B-Ionic Calcium Buffer System 32 oz package includes 16 oz of Component No. 1 Alkalinity and 16 oz of Component No. 2 Calcium, dosed in equal parts to maintain calcium and alkalinity with no powder mixing.
0 showcased tanks
SupplementationDr. Tim's Aquatics
Dr.Tim's Waste-Away (32 oz) is a 100% natural, reef-safe bacterial additive that dissolves sludge and hidden wastes in hard-to-reach areas; it helps reduce nitrates and phosphates, unclog sand and gravel beds, and raise ORP, with the 32 oz bottle treating up to 960 gallons.
0 showcased tanks
SupplementationReef Octopus
The Reef Octopus 350PRO Commercial Calcium Reactor is developed for the commercial sector including public aquariums, fish farms, and aquaculture centers up to 4,000 US gallons. High-performance reverse flow design with Water Blaster 12500 recirculation pump (175W, 2-year pump warranty, silicone carbide shafts/bearings); pH probe holder, built-in bubble counters, independent flow valves; media capacity 70 L (18.5 gal), required feed pump 600-1000 GPH; footprint 24 x 11.5 in, height 52 in.
0 showcased tanks
SupplementationSimplicity
The Simplicity 4-Head Dosing Pump has four individually programmable pump heads with onboard controls, ±0.1 mL per 10 mL accuracy, 50 mL/min flow rate, dosing from 1 mL to 9999 mL at intervals from hourly to every 30 days.
0 showcased tanks
SupplementationRed Sea
Red Sea's 4-Part Complete Reef Care is a reef dosing system supplying 36 major, minor, and trace elements consumed by corals, with dosing guided by a single weekly calcium test; Bottle 1 doses calcium, Bottle 2 doses 2x volume for alkalinity, and Bottles 3 and 4 dose half volume for iodine/potassium and iron/bioactive elements. It pairs with the ReefDose 4 pump, which auto-scales all four doses from Bottle 1 in the ReefBeat app, and comes in Small (up to 40 gal), Medium (up to 80 gal), and Large (160+ gal) sizes.
0 showcased tanks
SupplementationAqua Forest Aquarium
The 5 Lb. Aluminum CO2 Cylinder is a brand-new, unfilled high-quality carbon dioxide gas cylinder made of aluminum with extra-thick walls. It has a standard CGA320 valve, corrosion-resistant interior and exterior, 1800 PSI service pressure, DOT-3AL certification, and refillable at a local gas supplier or welding shop.
0 showcased tanks
SupplementationTropic Marin
Tropic Marin Elimi-Phos Rapid (500 mL) is a lanthanum-based liquid treatment for extremely rapid phosphate reduction in aquariums. It binds phosphates rapidly and precipitates them from the water column, preventing nuisance algae and supporting coral health; 10 mL per 26 gallons reduces phosphate by up to 1 ppm, and it works best when used with a skimmer or fine mechanical filtration.
0 showcased tanks
