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 Fish Tank Aquarium Thermometer Water Temperature Meter 0°C~37°C O9C3Lcd Digital Fish Tank Aquarium Thermometer Water Temperature Meter 0°C~37°C O9C3 $7.74 Suction Cup Glass Aquarium Temperature Measure Thermometer Celsius ThermographSuction Cup Glass Aquarium Temperature Measure Thermometer Celsius Thermograph $5.38 to $6.31
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 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
AutoTopoff Double - Water Level Controller for Reef Aquarium - Auto Top Off AtoAutoTopoff Double - Water Level Controller for Reef Aquarium - Auto Top Off Ato $55.00 5pcs/lot Aquarium Fish Tank Fridge Thermometer Temperature Sticker Stick-On Bs5pcs/lot Aquarium Fish Tank Fridge Thermometer Temperature Sticker Stick-On Bs $6.02 Was:  Previous Price $6.47
New listing
		Hanna Instruments Hi758-26 Marine Calcium Checker Reagents (25 Tests)New listing Hanna Instruments Hi758-26 Marine Calcium Checker Reagents (25 Tests) $9.99 Hi772-26 Marine Alkalinity Checker Hc Reagent 25 Tests Hanna InstrumentsHi772-26 Marine Alkalinity Checker Hc Reagent 25 Tests Hanna Instruments $12.00
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 Marina Floating Thermometer With Suction Cup Aquarium Fish Tank Temperature ToolMarina Floating Thermometer With Suction Cup Aquarium Fish Tank Temperature Tool $2.33 Trending at $2.99
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 $21.99 New listing
		New Digital Power Center Timer 8 Outlet Up to 1875 watts 15 AmpsNew listing New Digital Power Center Timer 8 Outlet Up to 1875 watts 15 Amps $23.99 Trending at $25.09
Mardel in-tank Ph Meter 4 - 6 Week MeterMardel in-tank Ph Meter 4 - 6 Week Meter $5.75 Neptune Systems Optical Level Sensor with Magnetic Mount Os-1-MNeptune Systems Optical Level Sensor with Magnetic Mount Os-1-M $34.95
Autoaqua smart ato microAutoaqua smart ato micro $75.00 Fluval Sea marine aquarium Fish Water Tank Supply salt level Hydrometer MonitorFluval Sea marine aquarium Fish Water Tank Supply salt level Hydrometer Monitor $8.99
1x Digital Lcd Fish Tank Aquarium Marine Water Thermometer Temperature Black A61x Digital Lcd Fish Tank Aquarium Marine Water Thermometer Temperature Black A6 $5.79 Was:  Previous Price $6.23 Apex Neptune Systems Lab Grade Ph ProbeApex Neptune Systems Lab Grade Ph Probe $29.99
Aquaneat Aquarium Digital Thermometer Fish Tank Water Terrarium Black Free ExtraAquaneat Aquarium Digital Thermometer Fish Tank Water Terrarium Black Free Extra $8.89 to $30.60 Mount for Apex 24v SolenoidMount for Apex 24v Solenoid $12.99
1Pc Lcd Digital Aquarium Thermometer Submersible for Fresh Salt Water Terrarium1Pc Lcd Digital Aquarium Thermometer Submersible for Fresh Salt Water Terrarium $5.28 Was:  Previous Price $5.56 Aquarium Ato Auto Top Off System, Water Filler With 3 Sensors, Pump Include PetAquarium Ato Auto Top Off System, Water Filler With 3 Sensors, Pump Include Pet $70.95
Hydrometer Aquarium Saltwater Reef Salt Water Specific Gravity Salinity St-03Hydrometer Aquarium Saltwater Reef Salt Water Specific Gravity Salinity St-03 $7.99 List price:  Previous Price $14.99 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
Hydor Smart Level Controller, Automatic Top Off, AtoHydor Smart Level Controller, Automatic Top Off, Ato $50.00 Magnetic probe holderMagnetic probe holder $25.00
Vintage Aquarium Glass Hydrometer Fish Tank Water Temperature Salt MVintage Aquarium Glass Hydrometer Fish Tank Water Temperature Salt M $9.95 Pinpoint Orp Redox 400 Calibration FluidPinpoint Orp Redox 400 Calibration Fluid $4.99
Marina Floating Thermometer with Suction CupMarina Floating Thermometer with Suction Cup $1.70 Digital Aquatics ReefKeeper Rkm-Pb4 Power Bar 4 Saltwater tank ControllerDigital Aquatics ReefKeeper Rkm-Pb4 Power Bar 4 Saltwater tank Controller $50.00
Innovative Marine Auqa Gadget Titanium Hydrofill Ato ControllerInnovative Marine Auqa Gadget Titanium Hydrofill Ato Controller $3.25 Auto Water Filler Controller Auto-top-Off System Float Mounting for AquariumAuto Water Filler Controller Auto-top-Off System Float Mounting for Aquarium $9.02 Was:  Previous Price $9.49
Aquarium Thermometer (Large Screen Digital Thermometer and Hygrometer)Aquarium Thermometer (Large Screen Digital Thermometer and Hygrometer) $6.28 Trending at $7.61 Tiny Seas Digital Aquarium Fish Tank Temperature Thermometer Free Extra BatteryTiny Seas Digital Aquarium Fish Tank Temperature Thermometer Free Extra Battery $4.99
Avast Top Off Aquarium Water Controller Sensor System Aqua lifterAvast Top Off Aquarium Water Controller Sensor System Aqua lifter $90.00 Digitla Aquatics Apc Advanced Pump Controller. 30-0034-001Digitla Aquatics Apc Advanced Pump Controller. 30-0034-001 $44.99
American Marine Pinpoint Orp Monitor with probe and calibration fluidAmerican Marine Pinpoint Orp Monitor with probe and calibration fluid $114.99 Milwaukee- Mw600 Dissolved Oxygen Do Meter - Checker TesterMilwaukee- Mw600 Dissolved Oxygen Do Meter - Checker Tester $172.00
New! Bnc Electrode Probe Connector for Ph Aquarium Controller Meter SensorNew! Bnc Electrode Probe Connector for Ph Aquarium Controller Meter Sensor $12.50 3X Aquarium Lcd Digital Fish Thermometer Water Terrarium Black Free Batteries3X Aquarium Lcd Digital Fish Thermometer Water Terrarium Black Free Batteries $7.89
Hydrometer Aquarium Fish Saltwater Reef Salt Water Specific Gravity Salinity PptHydrometer Aquarium Fish Saltwater Reef Salt Water Specific Gravity Salinity Ppt $9.99 List price:  Previous Price $15.99 Glass Fish Tank Thermometer Fish Tank Aquarium Water ThermometerGlass Fish Tank Thermometer Fish Tank Aquarium Water Thermometer $5.74
Ekoral Power 6Ekoral Power 6 $99.99 New Digital Lcd Fish Tank Aquarium Marine Water Thermometer Temperature BlackNew Digital Lcd Fish Tank Aquarium Marine Water Thermometer Temperature Black $4.88
Floating Thermometer Suction Cup Aquarium Pool Jacuzzi Temperature Control EasyFloating Thermometer Suction Cup Aquarium Pool Jacuzzi Temperature Control Easy $2.57 Soil Test Kit Tester pH Test Light Npk Levels Rapitest Ground #1601 (40 Test)Soil Test Kit Tester pH Test Light Npk Levels Rapitest Ground #1601 (40 Test) $15.03
teffo; Aquarium Temperature Controller w/Magnetic Sensor;WiFi Thermometer;2-Stagteffo; Aquarium Temperature Controller w/Magnetic Sensor;WiFi Thermometer;2-Stag $59.99 Seneye Reef — Automatic Tropical Aquarium Monitoring SystemSeneye Reef — Automatic Tropical Aquarium Monitoring System $199.00
Seneye+ 3 Month Replacement Slide Pack - Seneye Reef AquariumSeneye+ 3 Month Replacement Slide Pack - Seneye Reef Aquarium $36.99 Aquarium Thermometer Lcd Digital Fish Tank Water Temperature Measure GaugeAquarium Thermometer Lcd Digital Fish Tank Water Temperature Measure Gauge $7.99
Lcd Digital Fish Aquarium Water Tank Thermometer New Us SellerLcd Digital Fish Aquarium Water Tank Thermometer New Us Seller $6.19 Neptune Systems Apex Jr with Temp ProbeNeptune Systems Apex Jr with Temp Probe $61.00
Neptune Systems Apex 8 (Eight) Outlet Aquarium PowerStrip EnergyBar Eb8Neptune Systems Apex 8 (Eight) Outlet Aquarium PowerStrip EnergyBar Eb8 $80.00 Neptune Systems 1" Flow Sensor Fs100Neptune Systems 1" Flow Sensor Fs100 $56.00
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 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
Lcd Digital Thermometer Aquarium Fish Tank Vivarium Water Temperature MeterLcd Digital Thermometer Aquarium Fish Tank Vivarium Water Temperature Meter $5.98 Coralbox Powercell - Jebao/Jecod Battery Backup For Wave Pumps & Dc PumpsCoralbox Powercell - Jebao/Jecod Battery Backup For Wave Pumps & Dc Pumps $79.99
Fish Tank Aquarium Water Temperature Thermometer Lcd Fresh Functional Tester La1Fish Tank Aquarium Water Temperature Thermometer Lcd Fresh Functional Tester La1 $6.48 Seneye Reef Aquarium Monitor - SeneyeSeneye Reef Aquarium Monitor - Seneye $170.00
4 Line Probe Holder - Black4 Line Probe Holder - Black $13.50 Milwaukee Mc122 pH Controller w/probeMilwaukee Mc122 pH Controller w/probe $125.95 Trending at $130.00
*New* Aquatek Aquarium Co2 Regulator Mini (with Integrated Cool Touch Solenoid)*New* Aquatek Aquarium Co2 Regulator Mini (with Integrated Cool Touch Solenoid) $77.99 Brightwell Refractometer Calibration Solution 60mL Fast Free Usa ShippingBrightwell Refractometer Calibration Solution 60mL Fast Free Usa Shipping $7.99
Fusion Smart Temp ThermometerFusion Smart Temp Thermometer $6.49 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
Lcd 3D Digital Electronic Aquarium Thermometer Fish Tank Temp Meter +BuckleLcd 3D Digital Electronic Aquarium Thermometer Fish Tank Temp Meter +Buckle $5.99 to $13.99 GrowBro Co2 Generator Refill Kit Grow Box Cabinets Bucket Bag Pc HydroponicGrowBro Co2 Generator Refill Kit Grow Box Cabinets Bucket Bag Pc Hydroponic $11.99
Us 1/2Pcs Fish Tank Water Terrarium Temperature Meters Gauge, Lcd DisplayUs 1/2Pcs Fish Tank Water Terrarium Temperature Meters Gauge, Lcd Display $3.75 to $5.63 Was:  Previous Price $5.15 Aquatek Co2 Mini Aquarium RegulatorAquatek Co2 Mini Aquarium Regulator $45.00
Dc16 Lcd Digital Waterproof Fish Tank Aquarium Water Temperature Thermometer UsDc16 Lcd Digital Waterproof Fish Tank Aquarium Water Temperature Thermometer Us $6.99 Stick-On Fish Tank Temperature Measure Thermograph Celsius Thermometer StickerStick-On Fish Tank Temperature Measure Thermograph Celsius Thermometer Sticker $5.56 to $6.41
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 Qooltek Digital Lcd Thermometer Temperature Gauge Aquarium with Probe for VehiclQooltek Digital Lcd Thermometer Temperature Gauge Aquarium with Probe for Vehicl $11.43
Salinity Tester Accurate Sea Hydrometer Aquarium Marine Salinity MeterSalinity Tester Accurate Sea Hydrometer Aquarium Marine Salinity Meter $9.82 AutoAqua Smart Ato Micro Auto Top Off System W/ Pump, Complete KitAutoAqua Smart Ato Micro Auto Top Off System W/ Pump, Complete Kit $74.99
Digital Aquatics ReefKeeper Pc4 Reef Keeper Saltwater Fish Tank Controller PowerDigital Aquatics ReefKeeper Pc4 Reef Keeper Saltwater Fish Tank Controller Power $30.00 3 pcs Lcd Digital Fish Aquarium Thermome
00004000
ter Water Terrarium Black Free Batteries3 pcs Lcd Digital Fish Aquarium Thermome 00004000 ter Water Terrarium Black Free Batteries $8.70
Neptune Systems Sv-1 Solenoid ValveNeptune Systems Sv-1 Solenoid Valve $21.50 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
Milwaukee Mc510 Orp Controller w/probeMilwaukee Mc510 Orp Controller w/probe $141.00 Aquatic Dosing ContainerAquatic Dosing Container $25.00
Precise Digital Lcd Thermometer Sensor Indoor Meter For Greenhouse AquariumPrecise Digital Lcd Thermometer Sensor Indoor Meter For Greenhouse Aquarium $4.59 Fluval Wireless 2in1 Digital ThermometerFluval Wireless 2in1 Digital Thermometer $18.14
Tunze Water Level Osmolator Nano 3152 Automatic Aquarium Water Top Off AtoTunze Water Level Osmolator Nano 3152 Automatic Aquarium Water Top Off Ato $97.46 Floating Thermometer With Suction Cup Aquarium Fish Tank Temperature Tool MarinaFloating Thermometer With Suction Cup Aquarium Fish Tank Temperature Tool Marina $2.54 Trending at $2.99
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 AikTryee 2Pcs Upgraded Aquarium Thermometer, Fish Tank Thermometer, Terrarium.AikTryee 2Pcs Upgraded Aquarium Thermometer, Fish Tank Thermometer, Terrarium. $8.98
Jebao/Jecod Pump to Neptune Systems Apex Controller Linkage AdapterJebao/Jecod Pump to Neptune Systems Apex Controller Linkage Adapter $19.00 Fish Tank Round Lcd Thermometer Sticker Indoor Easy Read Temperature MeasureFish Tank Round Lcd Thermometer Sticker Indoor Easy Read Temperature Measure $6.17 to $6.76
0C~37C Mini Lcd Digital Fish Tank Aquarium Thermometer Water Temperature Meter F0C~37C Mini Lcd Digital Fish Tank Aquarium Thermometer Water Temperature Meter F $8.28 Fish Tank Water Temperature Aquarium Thermometer with Suction Cups, SuspensibleFish Tank Water Temperature Aquarium Thermometer with Suction Cups, Suspensible $1.74
Hanna Hi774-25 Phosphate Ultra Low Range Checker Hc Reagent (25 Tests)Hanna Hi774-25 Phosphate Ultra Low Range Checker Hc Reagent (25 Tests) $11.00 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
Fluval Digital Aquarium Thermometer Large Lcd Display NewFluval Digital Aquarium Thermometer Large Lcd Display New $12.99 Auto Top Off Controller - JbjAuto Top Off Controller - Jbj $89.99
Fish Tank Thermometer Digital Lcd Aquarium Probe Water Temperature MonitorFish Tank Thermometer Digital Lcd Aquarium Probe Water Temperature Monitor $8.99 to $12.99 Aquarium Auto Top Off System, Water Filler, Ato System, Water Level ControllerAquarium Auto Top Off System, Water Filler, Ato System, Water Level Controller $44.99
Autoaqua Smart Awc - Auto Water Changer + Auto Top off for AquariumsAutoaqua Smart Awc - Auto Water Changer + Auto Top off for Aquariums $209.99 Digital Lcd Aquarium Waterproof Thermometer Fish Water Tank Temperature Fast UsDigital Lcd Aquarium Waterproof Thermometer Fish Water Tank Temperature Fast Us $6.99
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Prices current as of last update, 08/15/19 10:57pm.

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