A 335,000 U.S. gallon (1.3 million liter) aquarium at the Monterey Bay Aquarium in California displaying a simulated kelp forest ecosystemSouth East Asian fish in the aquarium at Bristol Zoo, Bristol, England. The tank is about 2 metres (6 feet) high.Koi have been kept in decorative ponds for centuries in China and Japan.

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Aquarium Meters, Regulators

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Lcd Digital Thermometer Fridge Freezer Aquarium Fish Tank Temperature Cortrol UsLcd Digital Thermometer Fridge Freezer Aquarium Fish Tank Temperature Cortrol Us $4.99 Dm-1 Inline Dual Tds Monitor Online Ro Di Water Filter ppm Meter 1/4" Hm DigitalDm-1 Inline Dual Tds Monitor Online Ro Di Water Filter ppm Meter 1/4" Hm Digital $23.99
300W Aquarium Submersible Fish Tank Water Heater Rod W/ Led Lcd Thermometer300W Aquarium Submersible Fish Tank Water Heater Rod W/ Led Lcd Thermometer $12.69 New listing
		Tunze Osmolator 3155 Aquarium Auto Top Off System. Ato. Water Level Controller.New listing Tunze Osmolator 3155 Aquarium Auto Top Off System. Ato. Water Level Controller. $79.56
Fish Tank Thermometer Digital Lcd Aquarium Probe Water Temperature MonitorFish Tank Thermometer Digital Lcd Aquarium Probe Water Temperature Monitor $8.99 to $11.99 New listing
		Extra Large Black Magic 11.5" Acrylic Aquarium Thermometer C/F A1! Super Sale!New listing Extra Large Black Magic 11.5" Acrylic Aquarium Thermometer C/F A1! Super Sale! $13.99
4 Hole Air Dosing Pump Tubing Holder - 3D Printed. Contour for Rimmed Tanks4 Hole Air Dosing Pump Tubing Holder - 3D Printed. Contour for Rimmed Tanks $7.58 Digital Salt Water Aquarium pH Meter/Lcd Thermometer w/Tds Water Quality ppm PenDigital Salt Water Aquarium pH Meter/Lcd Thermometer w/Tds Water Quality ppm Pen $23.99 List price:  Previous Price $49.99
Vertex Sensor Magnetic Xd Probe HolderVertex Sensor Magnetic Xd Probe Holder $22.00 New Neptune Systems Apex Ldk Leak Detection Kit FreeshippingNew Neptune Systems Apex Ldk Leak Detection Kit Freeshipping $145.99
Ecotech Marine Reeflink Wireless ControllerEcotech Marine Reeflink Wireless Controller $29.00 Milwaukee Instruments Ph56 Waterproof pH Temp Tester Meter, Martini, Ph52 Ph53Milwaukee Instruments Ph56 Waterproof pH Temp Tester Meter, Martini, Ph52 Ph53 $75.00
Jbj Auto Top Off with Pump (Ato)Jbj Auto Top Off with Pump (Ato) $22.50 Aquarium Thermometer (Large Screen Digital Thermometer and Hygrometer)Aquarium Thermometer (Large Screen Digital Thermometer and Hygrometer) $9.99
Milwaukee 7.01 pH Calibration Fluid 20Ml Single Use Packet - Apex Reef KeeperMilwaukee 7.01 pH Calibration Fluid 20Ml Single Use Packet - Apex Reef Keeper $1.29 Neptune Systems Apex Classic Aquarium ControllerNeptune Systems Apex Classic Aquarium Controller $350.00
Jbj True Temp Digital Controller Tt-1000 Watt (untested)Jbj True Temp Digital Controller Tt-1000 Watt (untested) $39.99 Duetto Dual-Sensor Ato Aquarium Auto-Top-Off System - Xp AquaDuetto Dual-Sensor Ato Aquarium Auto-Top-Off System - Xp Aqua $119.99
neptune systems apex reef salt water saltwater aquarium controller classicneptune systems apex reef salt water saltwater aquarium controller classic $285.00 New Digital Lcd Fish Tank Aquarium Marine Water Thermometer Temperature BlackNew Digital Lcd Fish Tank Aquarium Marine Water Thermometer Temperature Black $4.58
Hagen Marina Minerva Fish Aquarium Lcd Outside Thermometer 66-88 F 19-33CHagen Marina Minerva Fish Aquarium Lcd Outside Thermometer 66-88 F 19-33C $5.29 4 Tiny Seas Lcd Digital Aquarium Temperature Thermometer 4 Free Extra Batteries4 Tiny Seas Lcd Digital Aquarium Temperature Thermometer 4 Free Extra Batteries $10.85
Icecap Salinity & Temperature Digital MeterIcecap Salinity & Temperature Digital Meter $64.99 Trending at $79.98 Neptune Systems Apex Display MountNeptune Systems Apex Display Mount $8.00
pH & Orp Redox Controller Water Quality Meter Tester 14.00pH / 1999mV AquariumpH & Orp Redox Controller Water Quality Meter Tester 14.00pH / 1999mV Aquarium $102.76 New listing
		Neptune Apex Dos Ddr Dual Reservoir - NewNew listing Neptune Apex Dos Ddr Dual Reservoir - New $165.00
Lcd Digital Water Thermometer Fish Tank Temperature Meter For Aquarium MarineLcd Digital Water Thermometer Fish Tank Temperature Meter For Aquarium Marine $8.25 Bubble Magus Seaside Aquatics Magnetic Aquarium Quad (4) Probe Holder Fish TankBubble Magus Seaside Aquatics Magnetic Aquarium Quad (4) Probe Holder Fish Tank $23.99
Solenoid for Aquatek Co2 RegulatorSolenoid for Aquatek Co2 Regulator $38.99 Dual Aquarium Fish Tank Thermometer Temperature Sticker Stick-on Fahrenheit °FDual Aquarium Fish Tank Thermometer Temperature Sticker Stick-on Fahrenheit °F $2.54
Hm Digital Dm-1 Inline Dual Tds Monitor Online Ro Di Water Filter ppm Meter 1/4"Hm Digital Dm-1 Inline Dual Tds Monitor Online Ro Di Water Filter ppm Meter 1/4" $20.50 Trending at $23.98 Hanna Instrument Hi736-25 Phosphorus Ultra Low Range Marine Reagent (25 Tests)Hanna Instrument Hi736-25 Phosphorus Ultra Low Range Marine Reagent (25 Tests) $13.99
Aquarium Thermometer Lcd Sticker 5cm- Fish Tank Plant Marina Co2Aquarium Thermometer Lcd Sticker 5cm- Fish Tank Plant Marina Co2 $10.48 New listing
		Neptune Systems Ald New Open BoxNew listing Neptune Systems Ald New Open Box $80.00
New listing
		Deluxe Aquatek Co2 Regulator + Co2 Proof tubingNew listing Deluxe Aquatek Co2 Regulator + Co2 Proof tubing $75.99 (2) Neptune Systems Classic Apex Base Units - For Repair - Read Description(2) Neptune Systems Classic Apex Base Units - For Repair - Read Description $100.00
Icecap Dual Optical Auto Top Off System - Aquarium Ato - Brand New!Icecap Dual Optical Auto Top Off System - Aquarium Ato - Brand New! $124.99 New listing
		Neptune Systems AldNew listing Neptune Systems Ald $70.00
Neptune Systems Apex Apexsysng Base Unit, Lab pH, Orp, Temp Probes, Eb832 SealedNeptune Systems Apex Apexsysng Base Unit, Lab pH, Orp, Temp Probes, Eb832 Sealed $525.98 Lifegard Big Time & Temp Digital Aquarium Thermometer Fast Free Usa ShippingLifegard Big Time & Temp Digital Aquarium Thermometer Fast Free Usa Shipping $32.95
Neptune Systems Lab Grade Orp Probe Aquarium Water TesterNeptune Systems Lab Grade Orp Probe Aquarium Water Tester $58.00 Digital Aquatics Reefkeeper Rkm-Sl2 / Rkm-Mlc ModulesDigital Aquatics Reefkeeper Rkm-Sl2 / Rkm-Mlc Modules $13.50
2 pcs Lcd Digital Fish Aquarium Thermometer Water Terrarium Black Free Batteries2 pcs Lcd Digital Fish Aquarium Thermometer Water Terrarium Black Free Batteries $6.95 Trending at $7.59 Milwaukee Mc122 pH Controller 115V, for Co2 Dosing/Monitor/Meter/Inst rumentsMilwaukee Mc122 pH Controller 115V, for Co2 Dosing/Monitor/Meter/Inst ruments $130.00
Co2 Generator System For Planted Aquariums To 40 Gallons Organic Bio SafeCo2 Generator System For Planted Aquariums To 40 Gallons Organic Bio Safe $18.99 Zaojiao Auto-top-off Ato solution auto water filler Adjustable Float Valve Mo.Zaojiao Auto-top-off Ato solution auto water filler Adjustable Float Valve Mo. $16.99
New listing
		Up Ph Controller Monitor w/probe electrode Bnc Adapter Buffer 100~240V fish tankNew listing Up Ph Controller Monitor w/probe electrode Bnc Adapter Buffer 100~240V fish tank $103.99 Digital Aquatics Bus Cables 10' (2) NewDigital Aquatics Bus Cables 10' (2) New $17.00
Lcd Digital Fish Tank Aquarium Temperature Alarm Mini Thermometer WaterProof UsaLcd Digital Fish Tank Aquarium Temperature Alarm Mini Thermometer WaterProof Usa $5.99 to $28.21 American Marine Pinpoint Dual-Stage Temperature Controller + ProbeAmerican Marine Pinpoint Dual-Stage Temperature Controller + Probe $69.99
Lcd Digital Fish Aquarium Thermometer Water Terrarium Black Free Extra BatteriesLcd Digital Fish Aquarium Thermometer Water Terrarium Black Free Extra Batteries $4.59 6 pcs Lcd Digital Fish Aquarium Thermometer Water Black Free Extra Batteries6 pcs Lcd Digital Fish Aquarium Thermometer Water Black Free Extra Batteries $14.59
Digital Aquatics Reefkeeper Elite V2Digital Aquatics Reefkeeper Elite V2 $125.00 New Digital Aquatics float switch kit 2 float switches and magnet bracket AtoNew Digital Aquatics float switch kit 2 float switches and magnet bracket Ato $50.00
Jjmg Fish Tank Thermometer Lcd Digital Aquarium Water Terrarium TemperatureJjmg Fish Tank Thermometer Lcd Digital Aquarium Water Terrarium Temperature $12.93 New listing
		Digital Lcd Waterproof Fish Aquarium Water Tank Temperature Thermometer Meter UsNew listing Digital Lcd Waterproof Fish Aquarium Water Tank Temperature Thermometer Meter Us $7.99
Eheim Jager Aquarium Heater Fully Submersible! (Pick Your Size) 25W To 300WEheim Jager Aquarium Heater Fully Submersible! (Pick Your Size) 25W To 300W $22.99 to $29.99 Digital Aquatics ReefkeeperDigital Aquatics Reefkeeper $220.00
American Marine Pinpoint Ph ProbeAmerican Marine Pinpoint Ph Probe $39.95 Milwaukee Mc510 Orp/Mv Controller, Probe Included, 115V, Sms510/Monitor/MeterMilwaukee Mc510 Orp/Mv Controller, Probe Included, 115V, Sms510/Monitor/Meter $136.00
*New* Basic Aquatek Co2 Regulator with Integrated Cool Touch Solenoid*New* Basic Aquatek Co2 Regulator with Integrated Cool Touch Solenoid $79.99 1pc Lcd 3D Crystal Digital Measurement Fish Tank Reptile Aquarium Thermometer1pc Lcd 3D Crystal Digital Measurement Fish Tank Reptile Aquarium Thermometer $3.86
American Marine Pinpoint Ph Controller - Aquarium Water Tester MeterAmerican Marine Pinpoint Ph Controller - Aquarium Water Tester Meter $188.99 New listing
		Neptune Apex Cor-15 Intelligent Return Pump (1500 Gph) - NewNew listing Neptune Apex Cor-15 Intelligent Return Pump (1500 Gph) - New $225.00
pH Electrode 0-14pH Bnc Connector Probe Replacement Kit for Aquarium HydroponicspH Electrode 0-14pH Bnc Connector Probe Replacement Kit for Aquarium Hydroponics $18.90 Brightwell Refractometer Calibration Solution 60mL Fast Free Usa ShippingBrightwell Refractometer Calibration Solution 60mL Fast Free Usa Shipping $6.95
New Fish Tank Aquarium Thermometer Temperature °F Fahrenheit Sticker Stick-OnNew Fish Tank Aquarium Thermometer Temperature °F Fahrenheit Sticker Stick-On $1.39 Zacro Lcd Digital Aquarium Thermometer Fish Tank Water Terrarium TemperatureZacro Lcd Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature $12.17
pH Electrode Bnc Connector for Ph Meter Monitor Controller Replacement ProbepH Electrode Bnc Connector for Ph Meter Monitor Controller Replacement Probe $18.90 AutoAqua Smart Ato Micro Automatic Top Off SystemAutoAqua Smart Ato Micro Automatic Top Off System $85.00
Aquarium Intense Flow Co2 Bubble Counter for Solenoid Diffuser Planted Fish TankAquarium Intense Flow Co2 Bubble Counter for Solenoid Diffuser Planted Fish Tank $10.99 Apogee Submersible Sensor WandApogee Submersible Sensor Wand $54.99
Marinepure Biofilter 1.5" Spheres (2 Quart) Aquarium Filter Media - CermediaMarinepure Biofilter 1.5" Spheres (2 Quart) Aquarium Filter Media - Cermedia $28.95 pH & Orp Redox Controller Water Quality Meter Tester Aquarium Hydroponics TankpH & Orp Redox Controller Water Quality Meter Tester Aquarium Hydroponics Tank $123.90
New listing
		New Fish Tank Thermometer Decoration JkusNew listing New Fish Tank Thermometer Decoration Jkus $4.81 Neptune Apex Dos Ddr Diy Cable + 2 Optical Level Sensors - Use Your ReservoirsNeptune Apex Dos Ddr Diy Cable + 2 Optical Level Sensors - Use Your Reservoirs $45.00
American Marine Pinpoint pH Monitor + probe and calibration fluidAmerican Marine Pinpoint pH Monitor + probe and calibration fluid $85.39 Ecotech ReeflinkEcotech Reeflink $46.00
1-1.07Sg Atc Salt Sea Water Tester Salinity Refractometer Aquarium Hydrometer1-1.07Sg Atc Salt Sea Water Tester Salinity Refractometer Aquarium Hydrometer $13.99 Digital Aquatics ReefKeeper Archon Wi-Fi SystemDigital Aquatics ReefKeeper Archon Wi-Fi System $169.00
Neptune Systems Apex Controller SystemNeptune Systems Apex Controller System $760.00 Hm Digital Triple Tds MonitorHm Digital Triple Tds Monitor $40.49
Neptune Systems Dos pumpNeptune Systems Dos pump $200.00 Glass Tube Aquarium Thermometer Fish Tank Temperature Submersible Suction HotGlass Tube Aquarium Thermometer Fish Tank Temperature Submersible Suction Hot $4.57 Was:  Previous Price $5.08
Kamoer 2-Liter Alkalinity Container With Liquid Level Sensor For Kamoer X4Kamoer 2-Liter Alkalinity Container With Liquid Level Sensor For Kamoer X4 $19.99 New Tiny Seas Digital Lcd Aquarium Temperature Thermometer Free Extra BatteryNew Tiny Seas Digital Lcd Aquarium Temperature Thermometer Free Extra Battery $4.87
Tunze Osmolator Universal Ato 3155 - Aquarium Water Refill System Auto Top OffTunze Osmolator Universal Ato 3155 - Aquarium Water Refill System Auto Top Off $189.99 New Neptune Systems Ddr - Dos Dual Reservoir free shippingNew Neptune Systems Ddr - Dos Dual Reservoir free shipping $179.99
American Marine Pinpoint Salinity Monitor w/probeAmerican Marine Pinpoint Salinity Monitor w/probe $119.95 American Marine Pinpoint Orp Monitor Includes Probe & Calibration FluidsAmerican Marine Pinpoint Orp Monitor Includes Probe & Calibration Fluids $114.98
ApexEl Controller - Neptune Apex Controller Wifi Model - Entry LevelApexEl Controller - Neptune Apex Controller Wifi Model - Entry Level $499.95 Awc - Auto Water Changer - Aquarium Ato - AutoaquaAwc - Auto Water Changer - Aquarium Ato - Autoaqua $199.99
Milwaukee Instruments Ma911B/2 pH Probe, for Sms120 Sms122 Sms125 Mc120 Mc122Milwaukee Instruments Ma911B/2 pH Probe, for Sms120 Sms122 Sms125 Mc120 Mc122 $38.98 Aquatek Co2-Proof Tubing 16 Feet Black color Airline suction cup includedAquatek Co2-Proof Tubing 16 Feet Black color Airline suction cup included $12.99
Bubble Magus Dosing Pumps 7 With Containers and HolderBubble Magus Dosing Pumps 7 With Containers and Holder $7.39 American Marine Pinpoint Orp Controller - Free  Usa ShippingAmerican Marine Pinpoint Orp Controller - Free  Usa Shipping $135.00
Seneye Home Aquarium MonitorSeneye Home Aquarium Monitor $149.00 Neptune Systems Apex 8 (Eight) Outlet Aquarium PowerStrip EnergyBar Eb8Neptune Systems Apex 8 (Eight) Outlet Aquarium PowerStrip EnergyBar Eb8 $82.00
2x Hydor Smart Level Controllers - Automatic Top Off2x Hydor Smart Level Controllers - Automatic Top Off $65.00 Digital Thermometer Aquarium Fish Tank Terrarium Temperature Gauge with ProbeDigital Thermometer Aquarium Fish Tank Terrarium Temperature Gauge with Probe $5.28
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Prices current as of last update, 02/21/19 2:27pm.

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