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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Dual Aquarium Fish Tank Thermometer Temperature Sticker Stick-on Fahrenheit °FDual Aquarium Fish Tank Thermometer Temperature Sticker Stick-on Fahrenheit °F $2.54 3 pcs Lcd Digital Fish Aquarium Thermometer Water Terrarium Black Free Batteries3 pcs Lcd Digital Fish Aquarium Thermometer Water Terrarium Black Free Batteries $8.70
Aquarium Lcd Digital Thermometer Fish Tank Water Digital ThermometerAquarium Lcd Digital Thermometer Fish Tank Water Digital Thermometer $5.80 Fish Tank Fridge Reptile Thermometer Lcd Digital Waterproof Aquarium ThermometerFish Tank Fridge Reptile Thermometer Lcd Digital Waterproof Aquarium Thermometer $5.76 Was:  Previous Price $6.55
Aquatic Dosing ContainerAquatic Dosing Container $20.00 Digital Lcd Fish Aquarium Thermometer with Submersible Probe & Battery Us StockDigital Lcd Fish Aquarium Thermometer with Submersible Probe & Battery Us Stock $6.79
Glass Sal
00006000
twater Hydrometer Thermometer - Aquarium reef Soft Coral Fish Tank TestGlass Sal 00006000 twater Hydrometer Thermometer - Aquarium reef Soft Coral Fish Tank Test $8.99 Co2 Atomizer System Aquarium Diffuser for 16/22mm Hose Water Plants Fish TankCo2 Atomizer System Aquarium Diffuser for 16/22mm Hose Water Plants Fish Tank $22.19
New listing
		Neptune Systems Apex Vdm - Dm Led & Pumps Control ModuleNew listing Neptune Systems Apex Vdm - Dm Led & Pumps Control Module $24.80 American Marine Pinpoint Orp Monitor Includes Probe & Calibration FluidsAmerican Marine Pinpoint Orp Monitor Includes Probe & Calibration Fluids $113.99
Glass Tube Aquarium Thermometer Fish Tank Temperature Submersible Suction HotGlass Tube Aquarium Thermometer Fish Tank Temperature Submersible Suction Hot $4.52 Was:  Previous Price $5.08 Milwaukee Mc510 Orp Controller w/probeMilwaukee Mc510 Orp Controller w/probe $141.00
Aquatop Floating Glass Aquarium Thermometer w/ Suction Cup Mount Free ShippingAquatop Floating Glass Aquarium Thermometer w/ Suction Cup Mount Free Shipping $6.95 Lcd Digital Fish Aquarium Water Tank Garden Pond Thermometer Gauge BlackLcd Digital Fish Aquarium Water Tank Garden Pond Thermometer Gauge Black $6.89
Milwaukee Mc122 pH Controller 115V, for Co2 Dosing/Monitor/Meter/Inst rumentsMilwaukee Mc122 pH Controller 115V, for Co2 Dosing/Monitor/Meter/Inst ruments $84.00 Smart Water Level Security Optical Sensor On/Off - AutoaquaSmart Water Level Security Optical Sensor On/Off - Autoaqua $59.99
New listing
		Neptune Systems Apex I/O Breakout BoxNew listing Neptune Systems Apex I/O Breakout Box $17.20 Lighting & Terrarium Heat Power Center for Reptile Habitats, DigitalLighting & Terrarium Heat Power Center for Reptile Habitats, Digital $5.55
Fusion Smart Temp ThermometerFusion Smart Temp Thermometer $6.49 Neptune Systems Energy Bar 8Neptune Systems Energy Bar 8 $90.00
Seneye Reef Pack with Web Server and Sensor Mag HolderSeneye Reef Pack with Web Server and Sensor Mag Holder $264.00 Precise Digital Lcd Thermometer Sensor Indoor Meter For Greenhouse AquariumPrecise Digital Lcd Thermometer Sensor Indoor Meter For Greenhouse Aquarium $4.59
Hanna Instruments H713 Low Range Phosphate Checker - Marine, ReefHanna Instruments H713 Low Range Phosphate Checker - Marine, Reef $49.95 Aquarium Thermometer (Large Screen Digital Thermometer and Hygrometer)Aquarium Thermometer (Large Screen Digital Thermometer and Hygrometer) $7.61 Trending at $9.99
4 Line Probe Holder - Black4 Line Probe Holder - Black $13.50 Lcd Digital Fish Tank Aquarium Thermometer Water Temperature Meter °C/°F O8I6Lcd Digital Fish Tank Aquarium Thermometer Water Temperature Meter °C/°F O8I6 $7.82
Seneye Home -aquarium monitor tester NaCl Ph Tds salinity ammonia par meter tempSeneye Home -aquarium monitor tester NaCl Ph Tds salinity ammonia par meter temp $149.00 List price:  Previous Price $208.60 Tunze Water Valve 8555.200. For electronic solenoid water auto top off controlTunze Water Valve 8555.200. For electronic solenoid water auto top off control $75.00
Tunze Osmolator Universal 3155 Marine Aquarium Auto Top - Off System Water levelTunze Osmolator Universal 3155 Marine Aquarium Auto Top - Off System Water level $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
New AutoAqua Smart Ato Micro Kit w/Pump - Automatic Top Off SystemNew AutoAqua Smart Ato Micro Kit w/Pump - Automatic Top Off System $119.99 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
Seneye Reef Kit W/Wifi & Dri Box Aquarium Monitor - SeneyeSeneye Reef Kit W/Wifi & Dri Box Aquarium Monitor - Seneye $469.00 Neptune Systems Apex Display MountNeptune Systems Apex Display Mount $8.00
Neptune Systems Apex Controller Plus Dos Fluid Metering SystemNeptune Systems Apex Controller Plus Dos Fluid Metering System $450.00 Lcd Digital Thermometer Adhesive Stick On Aquarium Fish Tank Window StripLcd Digital Thermometer Adhesive Stick On Aquarium Fish Tank Window Strip $6.29
Vintage Aquarium Glass Hydrometer Fish Tank Water Temperature Salt MVintage Aquarium Glass Hydrometer Fish Tank Water Temperature Salt M $9.95 1-10X Stick On Digital Thermometer Adhesive Aquarium Fish Tank Temperature Strip1-10X Stick On Digital Thermometer Adhesive Aquarium Fish Tank Temperature Strip $4.69 to $7.99
Lot of 3 Wall Timmers Great for AquariumsLot of 3 Wall Timmers Great for Aquariums $2.22 Hm Digital Tds Meter & Eco Tester Ph2 MeterHm Digital Tds Meter & Eco Tester Ph2 Meter $6.25
Aquarium thermometer 7" Hang on - Freshwater Marine Fish Tank 10 gallonAquarium thermometer 7" Hang on - Freshwater Marine Fish Tank 10 gallon $12.69 Lcd Digital Fish Aquarium Water Tank Thermometer New Us SellerLcd Digital Fish Aquarium Water Tank Thermometer New Us Seller $6.19
Aquarium Fish Tank Water Thermometer Digital Electronic Lcd Sensor ControllerAquarium Fish Tank Water Thermometer Digital Electronic Lcd Sensor Controller $6.49 AutoAqua Micro Smart Aquarium Ato Automatic Top Off System W/ Pump, EvaporationAutoAqua Micro Smart Aquarium Ato Automatic Top Off System W/ Pump, Evaporation $132.00
Auto Water Filler Top off system Aquarium Sytem Water Level Controller SuppliesAuto Water Filler Top off system Aquarium Sytem Water Level Controller Supplies $9.29 New listing
		Neptune Systems Apex Automatic FeederNew listing Neptune Systems Apex Automatic Feeder $40.00
Auto-top-off Ato Solution Water filler Float Valve Aquarium Tank Sump AdjustableAuto-top-off Ato Solution Water filler Float Valve Aquarium Tank Sump Adjustable $17.06 Neptune Apex Trident - Brand New In Hand - Free Shipping!Neptune Apex Trident - Brand New In Hand - Free Shipping! $735.00
Neptune Aqua Controller Iii With Expansion Module And Power SupplyNeptune Aqua Controller Iii With Expansion Module And Power Supply $75.00 Aquarium thermometer pointer fish tank temperature dial submersible suctioncuTpoAquarium thermometer pointer fish tank temperature dial submersible suctioncuTpo $6.08
New Fish Tank Aquarium Thermometer Temperature °F Fahrenheit Sticker Stick-OnNew Fish Tank Aquarium Thermometer Temperature °F Fahrenheit Sticker Stick-On $1.32 Was:  Previous Price $1.39 Marinepure Biofilter 1.5" Spheres (2 Quart) Aquarium Filter Media - CermediaMarinepure Biofilter 1.5" Spheres (2 Quart) Aquarium Filter Media - Cermedia $28.95
1Pc Lcd Digital Aquarium Thermometer Submersible for Fresh Salt Water Terrarium1Pc Lcd Digital Aquarium Thermometer Submersible for Fresh Salt Water Terrarium $5.23 Was:  Previous Price $5.56 Auto Water Filler, Top off System, Aquarium Ato Sytem, Water Level Controller UsAuto Water Filler, Top off System, Aquarium Ato Sytem, Water Level Controller Us $8.45 Was:  Previous Price $8.99
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 $21.99 Hot Soft Tube Fixture Holder For Dosing 4 Tubes Version NewHot Soft Tube Fixture Holder For Dosing 4 Tubes Version New $9.55
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 Awc - Auto Water Changer - Aquarium Ato - AutoaquaAwc - Auto Water Changer - Aquarium Ato - Autoaqua $199.99
Magnetic probe holderMagnetic probe holder $25.00 New Tiny Seas Digital Lcd Aquarium Te
00004000
mperature Thermometer Free Extra BatteryNew Tiny Seas Digital Lcd Aquarium Te 00004000 mperature Thermometer Free Extra Battery $4.97
Jw Smart Temp Thermometer. *Free Shipping*Jw Smart Temp Thermometer. *Free Shipping* $9.19 Aquarium Co2 Diffuser Corner for Fish Tank Water Plants 4/6mm Tubeing SolenoidAquarium Co2 Diffuser Corner for Fish Tank Water Plants 4/6mm Tubeing Solenoid $8.98
2 Pack Digital Lcd Aquarium Thermometer Fish Tank Water Temperature Terrarium2 Pack Digital Lcd Aquarium Thermometer Fish Tank Water Temperature Terrarium $10.50 Neptune Systems pH Calibration Fluid /Buffer/Salinity 10:00/7:00/4:00/53000 uSNeptune Systems pH Calibration Fluid /Buffer/Salinity 10:00/7:00/4:00/53000 uS $4.57 to $21.05
Autoaqua Smart Ato Micro - Automatic Top OffAutoaqua Smart Ato Micro - Automatic Top Off $55.00 Hydrometer For Salt Water AquriumHydrometer For Salt Water Aqurium $4.99
Neptune Apex Light Aquarium Controller SystemNeptune Apex Light Aquarium Controller System $275.00 Digital Thermometer - CoralifeDigital Thermometer - Coralife $14.75
Lcd Digital Aquarium Thermometer w/ Extra Battery for Water Cooling &GreenhouseLcd Digital Aquarium Thermometer w/ Extra Battery for Water Cooling &Greenhouse $6.99 Seneye+ 3 Month Replacement Slide Pack - Seneye Reef AquariumSeneye+ 3 Month Replacement Slide Pack - Seneye Reef Aquarium $28.99
Hi772-26 Marine Alkalinity Checker Hc Reagent 25 Tests Hanna InstrumentsHi772-26 Marine Alkalinity Checker Hc Reagent 25 Tests Hanna Instruments $12.00 Neptune Systems Apex Atk KitNeptune Systems Apex Atk Kit $103.50
Tunze 5000.020 Replacement Ato Pump For 3155 Osmolator 3152 Nano Auto Top OffTunze 5000.020 Replacement Ato Pump For 3155 Osmolator 3152 Nano Auto Top Off $24.98 Digital Aquarium Thermometer Fish Tank Water Aquatic Pets Marine Temperature NewDigital Aquarium Thermometer Fish Tank Water Aquatic Pets Marine Temperature New $9.06 Was:  Previous Price $9.74
AutoTopoff Nano - Auto Top Off Ato Water Level Controller for Reef AquariumAutoTopoff Nano - Auto Top Off Ato Water Level Controller for Reef Aquarium $40.00 Aqua Culture: Digital Aquarium Thermometer, 1 CtAqua Culture: Digital Aquarium Thermometer, 1 Ct $5.97
Grow Bro Co2 Generator Refill Kit For Planted Aquariums organic bio co2Grow Bro Co2 Generator Refill Kit For Planted Aquariums organic bio co2 $11.99 Milwaukee Mc122 pH Controller w/probeMilwaukee Mc122 pH Controller w/probe $125.95 Trending at $130.00
Breakout Box for Neptune Apex Aquarium ControllerBreakout Box for Neptune Apex Aquarium Controller $32.00 Salinity Refractometer, Aquarium & Seawater - Dual Scale (1.0 to 1.070 S.G.)Salinity Refractometer, Aquarium & Seawater - Dual Scale (1.0 to 1.070 S.G.) $18.99
Inkbird Itc-306T Temperature Controller Waterproof Sensor Heating Aquarium 110VInkbird Itc-306T Temperature Controller Waterproof Sensor Heating Aquarium 110V $25.99 Was:  Previous Price $39.99 Neptune Systems Apex 1Link Power and Communication Module for AquariumNeptune Systems Apex 1Link Power and Communication Module for Aquarium $60.00
Coralbox Powercell - Jebao/Jecod Battery Backup For Wave Pumps & Dc PumpsCoralbox Powercell - Jebao/Jecod Battery Backup For Wave Pumps & Dc Pumps $79.99 Lcd Digital Aquarium Thermometer for Fresh Salt Water Terrarium with Extra BatteLcd Digital Aquarium Thermometer for Fresh Salt Water Terrarium with Extra Batte $5.12 to $22.19
Deluxe Aquatek Co2 Brass Bubble Counter with Integrated Check ValveDeluxe Aquatek Co2 Brass Bubble Counter with Integrated Check Valve $16.99 Breakout box with Buttons for Neptune Apex Aquarium ControllerBreakout box with Buttons for Neptune Apex Aquarium Controller $120.00
Boyu Glass Meter Aquarium Fish Tank Water Temperature Thermometer w/Suction CupBoyu Glass Meter Aquarium Fish Tank Water Temperature Thermometer w/Suction Cup $5.26 Aquarium Fish Tank Electronic Digital Thermometer Water GagingAquarium Fish Tank Electronic Digital Thermometer Water Gaging $5.20
3X Aquarium Lcd Digital Fish Thermometer Water Terrarium Black Free Batteries3X Aquarium Lcd Digital Fish Thermometer Water Terrarium Black Free Batteries $7.89 *New* Aquatek Co2 Regulator Mini (with Integrated Cool Touch Solenoid)*New* Aquatek Co2 Regulator Mini (with Integrated Cool Touch Solenoid) $79.99
Aquarium fish tank thermometer glass meter water temperature gaugesuction cup LbAquarium fish tank thermometer glass meter water temperature gaugesuction cup Lb $6.20 Lightly Used Milwaukee Ph600 Ph TesterLightly Used Milwaukee Ph600 Ph Tester $10.99
Lifegard Aquatics Digital Temp AlertLifegard Aquatics Digital Temp Alert $29.95 1 Ea Dual Aquarium Fish Tank Thermometer Temp Sticker Stick-on Fahrenheit Usa1 Ea Dual Aquarium Fish Tank Thermometer Temp Sticker Stick-on Fahrenheit Usa $1.99
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 Aquatek SplitPro Co2 Splitter for Solenoid Regulator (6 Way)Aquatek SplitPro Co2 Splitter for Solenoid Regulator (6 Way) $61.99
Zacro Lcd Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature NewZacro Lcd Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature New $9.98 Basic Co2 Regulator with SolenoidBasic Co2 Regulator with Solenoid $9.25
Fish Tank Thermometer Digital Lcd Aquarium Probe Water Temperature MonitorFish Tank Thermometer Digital Lcd Aquarium Probe Water Temperature Monitor $8.99 to $11.99 Fish Tank Glass Aquarium Celsius Thermograph Thermometer Temperature MeasureFish Tank Glass Aquarium Celsius Thermograph Thermometer Temperature Measure $5.33 to $6.38
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Prices current as of last update, 06/16/19 7:27am.

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