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Best Choice Aqua Care 
Aqua Care Heat Aquarium Glass Heater, 50W - Fully Submersible, Automatic Thermostat, Accurate Temperature Control, Ideal Fast Heating: Superior design for quick and effective heating.Best Value PYPABL 
PYPABL Adjustable Fish Tank Heater 25W 50W 100W 200W 300W, Submersible Aquarium Heater for 10-300Liters Fish and Turtles [Wide Application] 25W aquarium heater, length: 20*2.5*2.5 cm, suitable for aquariums from 10 to 30 liters, also suitabl21% Off mosiller 
mosiller Aquarium Heater - 50W Adjustable Submersible Fish Tank Heater, IP68 Waterproof & Explosion-Proof, Temp 20-34℃/6 【300W Powerful Output】This 300W aquarium fish tank heater is suitable for 120-250L (30-65 gal) medium to large tanks, tu21% Off PYPABL PYPABL Adjustable Fish Tank Heater 25W 50W 100W 200W 300W, Submersible Aquarium Heater for 10-300Liters Fish and Turtles [Wide application] 50W aquarium heater, length: 20*2.5*2.5 cm, suitable for aquariums from 15 to 55 liters, also suitablMarina 
Marina Betta 8 Watt Heater for Aquarium Automatic, submersible aquarium heaterGeneric 
Generic Fish Tank Heater Heaters Pool Water Heater Aquarium Mini Aerators Water Tank Aquarium Heater Portable Bottle War Aquarium heater controller--the constant temperature control system not only saves energy but also ensures safety, prevePAIZOO 
PAIZOO Aquarium Chiller Fan, Fish Tank Cooling Fan with 3 Speed Modes Aquarium Cooler Water Chiller for Axolotl Betta Fi NECESSARY AQUARIUM ACCESSORIES: Most aquarium supplies generate a lot of heat, so an aquarium chiller fan is essential.TIKATARER TIKATARER Aquarium Chiller for Hydroponics System, 40L LCD Display Real Time Temperature Monitor Low Power Consumption Q 【PREMIUM MATERIAL】Adopted premium metal housing with solid and tough construction, featured with sleek black coating finHOLIDYOYO HOLIDYOYO Mini Aquarium Heater 10W Submersible Turtle Tank Heater USB Compact Heating Rod for 2-5L Freshwater Betta Fish Invisible installation: this compact fish tank heater is designed for easy concealment in small tank heater for betta fiAqua Care Aqua Care Heat Aquarium Glass Heater, 200W - Fully Submersible, Automatic Thermostat, Accurate Temperature Control, Idea Fast Heating: Superior design for quick and effective heating.LMFKDA Small Submersible Aquarium Heater, 10W Mini Aquarium Heater with Digital Display Thermostat, Temperature Adjustable 5V/2 【Mini Aquarium Heater】This small aquarium heater is only 5cm (1.97 inches) in length, takes up less space, and is easy tPYPABL PYPABL Adjustable Fish Tank Heater 25W 50W 100W 200W 300W, Submersible Aquarium Heater for 10-300Liters Fish and Turtles [Wide application] 300W aquarium heater, length: 27.9*2.5*2.5 cm, suitable for aquariums from 150 to 300 liters, also suPYPABL PYPABL Mini Submersible Aquarium Heater, 25W 50W 100W 300W Small Heater for Fish Tank 1-300L with External Controller (5 🐟PYPABL Mini size aquarium heater 50W with controller, suitable for seawater and freshwater heating, betta fish and turHiTauing HiTauing Aquarium Heater,100W Fish Tank Heater with LED Digital Display & 5 Safety Protection,Submersible Aquarium Heate 【Aquarium Heater 100W】-- The 100W aquarium heater produces stable power with quick heat up. It's length is 5.9'', voltag23% Off Aqua One Aquarium Heater 300W Glass 33cm Fish Tank 11308 Aqua One Automatic shut off and 'on' light38% Off perfk Perfk Aquarium Heater Small Fish Tank Heater USB 10W Turtle Tank Heating Bar Heating Rod Mini for Pet Drinking Waterer 【Convenient】External Heater requires no adjustment and enables effortless installationFluval Fluval E200 Advanced Electronic Heater, 100-Watt Heater for Aquariums up to 65 Gal., A773,Black Aquarium heater with dual temperature sensors provide accurate and real-time water temperaturesHiTauing HiTauing 300W Aquarium Heater, 300W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Of 🐠【Rapid Heating and Two Temperature Control System】300W aquarium heater is sutable for 40-75 gallon fish tank and madeEVTSCAN EVTSCAN Aquarium Heaters & Chillers, Aquarium Fish Tank Heater Protective Case Detachable Designed Cover with Suction Cu Perfect to protect your fishes, turtles and frogs in tank from water heater scaldingMEFESE MEFESE 100W 30L Small Fish Tank Water Heater & Chiller Aquarium Chiller Semiconductor Electronic Aquarium Cooler LCD Dis 100W small fish tank water chiller & heater is suitable for the aquarium at 30 liters or less tank capacity.DaToo DaToo Aquarium Chiller Fish Tank Fan Aquarium Cooling Fan, 1 Yr Warranty DaToo Aquarium Chiller - As we all know, too high or too low temperature is not healthy for fish. Comfortable temperaturFluval Fluval T200 Fully Electronic Heater for Freshwater Aquariums up to 65 Gal. 200-Watt heater designed for freshwater aquariums up to 65 Gal (200 L) with advanced electronic construction provides suPYPABL PYPABL Adjustable Submersible Aquarium Heater, 25W 50W 100W 300W Fish Tank Heater for Fish Tank 1-300L with External Con 🐟PYPABL adjustable size aquarium heater 100W with controller, suitable for seawater and freshwater heating, betta fishCLERIVI 10W Mini Aquarium Heater with USB Rechargeable Interface, Advanced Fish Tank Temperature Control Rod for Constant 26°C H 🐠 Automatic 26°C Constant Temperature：Equipped with an intelligent chip, this mini aquarium heater maintains a steady 2tooloflife T&F 24.5cm Fish Tank Heater Guard Protector Detachable Fish Tank Heating Rod Sleeve Plastic Aquarium Heater Protective C 【Suitable Gap Design】The protective sleeve has a suitable gap design to protect the fish while keeping the heat generateHiTauing HiTauing 500W Aquarium Heater, 500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Of 🐠【Rapid Heating and Two Temperature Control System】500W aquarium heater is sutable for 75-120 gallon fish tank and madeHiTauing HiTauing 50W Aquarium Heater, 50W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off 🐠【Rapid Heating and Two Temperature Control System】100W aquarium heater is sutable for 10-20 gallon fish tank and madeAquatopia Aquatopia AQ82430 Betta Heater Easy to use heating tool for siamese fighting fishMbnvtxh Mini Aquarium Heater, 10W Mini Fish Tank Heater with Digital Display, Fish Tank Heater, Thermostat Temperature Adjustabl [Mini Aquarium Heater] This small aquarium heater is only 5cm (1.97 inches) in length, takes up less space, and is easyHiTauing Aquarium Heater 800W for 80-175 Gal, Fish Tank Heater with Intelligent Leaving Water Automatica Stop Heating and Overhea 【Newly Upgraded Quality】Two super-tough heating tubes are made of explosion-proof quartz glass and high-temperature-resiGeneric Daseeme 100W 30L Small Fish Tank Water Heater & Chiller Aquarium Chiller Semiconductor Electronic Aquarium Cooler LCD Di 100W small fish tank water chiller & heater is suitable for the aquarium at 30 liters or less tank capacity.Generic 30L Aquarium Chiller with Pump and Hose, Mini 2-in-1 Water Chiller & Heater, 120W Aquarium Cooler for Fish Tank, Aquariu IMPORTANT SETUP INSTRUCTIONS: Before first use, thoroughly clean the chiller’s water tank with detergent at least threeGIOTUK Mini Aquarium Heater,10W USB Powered Mini Fish Tank Heater Adjustable Submersible Aquarium Heater Betta Heater with LED 【Mini Size】This small aquarium heater only 1.97” (5cm) in length. Great for nano tanks / betta tanks. It takes up less aAqua One Aquarium Heater Glass Nano Betta Preset 26C 50Hz 50W Fish Tank 15042 Aqua One Maintaining correct water temperature is an essential requirement for keeping fish happy and healthy, especially in tropFolpus Folpus Small Fish Tank Heater Thermostat Aquarium Heater for Turtle Tanks Aquariums 【Secure】Protected Fish Heater features automatic shut off for overheatPYPABL PYPABL Mini Aquarium Heater 50W 100W, Submersible Fish Tank Heater with External Controller, Shatterproof Heater for 15- 【Specifications】Mini design small fish tank heater 100W, AU Plug, power cable length: 1.7m, size: 11.5*7.5*3.5cm, with 3LQKS 10W Aquarium Heater,Fish Tank Heater,Mini Tank Heater Heating Rod Constant Temperature Heater,USB Interface Design Recha 【Automatic Temperature Adjustment】: Keep your fish healthy with our fish tank heating rod featuring a built-in smart chi26% Off Lotusland Adjustable Mini Aquarium Heater 10W Submersible Small Fish Tank Heater with Digital Display Thermostat External Temperat Mini Aquarium Heater: This mini fish tank heater is just about the size of a thumb – only 1.97”(5cm) long. Occupies lessMarina Marina Submersible Heater for Aquarium, Mini, 25-watt Easy to access temperature set dialPhosElpida Adjustable Fish Tank Heater 50W Submersible Aquarium Heater for 10-300Liters Fish and Turtles Tank 【Wide Application】 25W aquarium heater, length: 20*2.5*2.5 cm, suitable for aquariums from 15 to 55 liters, also suitablTavilo 100W Aquarium Heater with Digital Aquarium Thermometer, Submersible Fish Tank Heater with Automatic Constant Temperature 【100W Fast & Stable Heating】This aquarium heater quickly heats tanks up to 50L (13 gallons) with efficient and stable teAIMALL Aqua Fish Tank Thermosafe LED Digital Submersible Aquarium Water Heater 50W-200W, Energy-Efficient & Durable for Fish Ta 🌡️ Quick Heating: Our ThermoSafe heater quickly reaches the desired temperature, thanks to its high-quality iron-chromeHiTauing HiTauing Aquarium Heater, Upgraded 500W Fish Tank Heater with Intelligent Leaving Water Automatically Stop Heating and A 🐟【Explosion-proof Quartz Aquarium Heater】This 500W submersible aquarium heater is made of high-quality quartz glass tub21% Off Aqua One Heater 200W Glass 27.5cm 11306 Fish Tank Aquarium Aqua One Large temperature range from 20°C - 34°CGeneric 180W Aquarium Chiller with Pump & Hose, Aquarium Water Chiller 60L Fish Tank Cooler/Heater System, Ice Bath Water Cooler 60L SMALL AQUARIUM CHILLER: Designed for tanks up to 60 liters, this compact chiller uses advanced electronic cooling teGERUI 10 W USB Aquarium Heater with Robust Safety Design, 15-34 °C, Automatic Temperature Control, Aquarium Heater, Designed f Intelligent Shut-Off The temperature setting range is 17°C to 34°C (62°F to 93°F), and the heating cycle is gradual. AftQfdiwr Qfdiwr Water Heater for Aquarium, Heater for Small Aquarium | 10W Heating Stick for Crabs Freshwater Turtles Aquatic Ani USB Integration: Powered via USB, this aquarium heater offers an easy power solution, consuming only 10W for energy-effihygger hygger Submersible Aquarium Heater, Small Adjustable Fish Tank Heater with 2 Suction Cups, Temperature Controller, Over- Small Aquarium Heater: 25W mini size aquarium heater provides stable heating for 2–5 gallon freshwater or saltwater tank14% Off HiTauing HiTauing 100W Aquarium Heater, 100W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Of 🐠【Rapid Heating and Two Temperature Control System】100W aquarium heater is sutable for 10-20 gallon fish tank and madeGeneric Aquarium Chiller,Small Fish Tank Water Heater,Electronic Aquarium Cooler,ABS Housing Digital Display Intelligent Tempera VERSATILE APPLICATIONS - Ideal for various settings, this ice bath chiller is good for small refrigeration needs, aquacuAqua One Heater 150W Glass 20.5cm 11305 Fish Tank Aquarium Aqua One Automatic shut off and 'on' lightAIMALL 100W-500W Aquarium Submersible Heater Fish Tank Auto Water Thermostat 🌡️ Precise Temperature Control: Keep your aquarium at the perfect temperature range of 55°F to 92°F with a sensitive, rzenaogaawbo Decor Aquarium Heater Water Pot Kit Pond Chiller Plant Aquarium Pump Air Submersible Canister Fountain Tanks Clams Fish Bubbler for aquarium fish tank--easy to install, just connect to the oxygen pump, you can use this fish tank decorationGeneric 60L Aquarium Chiller, 180W Ice Bath Water Chiller with Digital Display Temperature Control, Quiet Design, Fish Tank Cool EFFICIENT COOLING: Designed for aquariums up to 60 L (16 gallons), this 180 W aquarium chiller delivers fast cyclic coolAquatopia Aquatopia Hydrotherm Heater 50W, For fresh water aquariums and fish tanksZALLUC Aquarium Heater 500W, Submersible Fish Tank Heater Super Short Aquarium Heater with LED Digital Display Thermostat for F 🐠 Super Mini Size: This 500W aquarium heater is short in length: 23.5cm, possibly the shortest heater on the market. ItInkbird Inkbird ITC308 Digital Wired Temperature Controller AU Plug Dual Stage Heat Cool Controller for Beer Brewing Homebrew Aq [Easy to Use] Plug-n-Play Design & Supports °C/°F displayZALLUC Aquarium Heater 300W, Submersible Fish Tank Heater Super Short Aquarium Heater with LED Digital Display Thermostat for F 🐠 Super Mini Size: This aquarium heater is super short in length, possibly the shortest heater on the market. It’s justhygger hygger Aquarium Heater, 300W/500W/800W/1000W Submersible Fish Tank Heater with Temperature Controller, Over-Temperature Rapid & Stable Aquarium Heating: 800W submersible aquarium heater provides stable heating for 80–200 gallon freshwater oUPLY UPLY 500W Aquarium Heater Submersible 500 Watt Titanium Fish Tank Heater with External Temperature Controller for 60 Gal UPLY 500W Titanium Aquarium Heater -- A habitat with a comfortable temperature is essential for fish. It can bring lifeFIRE BULL 10W Mini Fish Tank Heater with USB Rechargeable Interface, Aquarium Heater Constant Temperature 26°C,Suitable for 25L Sm 【Fixed Constant Temperature at 26℃/78℉】Built with a fixed constant temperature design of 26℃/78℉, perfectly fitting theGeneric Generic Aquarium Rockery Tank Rock Mountain for Aquariums Décor Fish Flamingo Aquarium Hose Aquarium Waterwheel Air Aqua Rockery for aquarium--the resin aquarium rockery can decorate your fish tank, to make it seem beautiful, and full of natAQQA AQQA Aquarium Heater, 300W/500W/800W/1000W/1200W Submersible Aquarium Heater with Digital LED Display Suitable for Fresh Temperature range 59℉-93℉: AQQA aquarium heater is composed of a most stable nickel-chrome heating wire, capable of diffKOWVOWZ 100w Fish Tank Heater, Submersible Aquarium Heater with Temperature Digital Display and Overtemperature Protection, Mini 【Safety Thanks to Automatic Shut-Off Outside the Water】: Our fish tank heater comes with an intelligent sensor that stopFxvhojq Mini Fish Tank Heater - 10W Aquarium Heater, 5V/2A USB Powered, with Digital Display Thermostat Temperature Adjustable f 【Mini Aquarium Heater】This small aquarium heater is only 5cm (1.97 inches) in length, takes up less space, and is easy tAquaOne Aquarium 25W Submersible Glass Heater 11301 Suits 25L Fish Tank Aqua One Aqua Care Aqua Care MINI Heater 7.5W - Easy to Locate, Fish Tank Heater, Ideal for Nano Tanks, 107mm*50mm, Black, Ideal for Fresh Easy to locate anywhere in aquarium: Compact design allows for versatile placement.hygger hygger Mini Aquarium Heater, Small Submersible Aquarium Heater 15W Mini Betta Tank Heater with Thermostat &Explosion-Pro Safe and Durable Construction - Built with shatterproof quartz tubes wrapped with two heating elements mica plates and nGERUI GERUI 2PCS USB Aquarium Heater 10 W Mini Aquarium Heating Rod with Thermostat, Thermostat Aquarium Turtle Heater for Sma High-quality material: this aquarium heating rod has undergone strict quality control and is made of high temperature reEheim Hunter 3613010 Aquarium Water Heater Submersible 75 Eheim Aquarium J ger precision Aquarien regulator heater adjustable aquarium heater 75 WattEheim Eheim Jäger 3616010 Aquarium Control Heater 150 EHEIM Aquariums Jäger precision aquarium regulator heater 150 wattshygger hygger Aquarium Heater Adjustable Power 500W/1000W, Fish Tank Heater with Led Digital Display Controller, Dual Quartz Gl 【Two-Stage Adjustable Power Design】The adjustable power heater allows you to switch between 500W and 1000W heater power.Angzhili Angzhili 50-500W Aquarium Heater, LED Display Submersible Titanium Fish Tank Heater Thermostat with External Thermostat Material:PVC?Durable &Stability Titanium? The wall heater is made of high-quality titanium for the outer shell of the heOase FiltoSmart Thermo 300 External Aquarium Heater - Oase Suitable for aquariums up to 300 litresTetra Tetra HT 50 Heater for 25-60 L Aquariums - Powerful Aquarium Heater for Covering Different Power Levels with Temperature Tetra HT 50 fully electronic aquarium heater for an aquarium size of 25-60 litres. With 3-stage status LED for an easy tFish Tank Water Cooling System, 70W 20L Small Fish Tank Water Heater & Chiller Aquarium Chiller Semiconductor Electronic Gadpiparty Gadpiparty USB Powered 15w Adjustable Betta Fish Tank Heater with External Temperature Control Celsius/Fahrenheit Small Easy temperature switching: effortlessly toggle between celsius and fahrenheit on this small adjustable aquarium heater,SAWEEZ Aquarium Chiller Water Cooler, Aquarium Cooler and Heater, Fish Tank Water Chiller with Special Quiet Design, Aquarium C Effective Coral Reef Preservation: Our Aquarium Chiller Water Cooler features a pure titanium evaporator, providing effeGyorwst Gyorwst 5W Mini Aquarium Heater USB Charging for Small Fish Tank Heater Easy Install Hydor Hydor 50W Theo Aquarium Heater, 17 cm Size Internal heater for aquariums and turtle tanksAIMALL AIMALL Haiba PTC Intelligent Fish Tank Heater - Constant Temperature Heating Rod with Off-Water Power Cut, 500W 800W 100 Powerful Heating Performance: Available in 500W, 800W, and 1000W, this submersible aquarium heater rod efficiently warmsEheim Jäger 3612010 Aquarium Control Heater 50 Eheim Aquarium Hunter Precision Aquarium Regulator Heater 50 WattZOIC High Power 1000W 1200W 1500W Aquarium Pond Fish Tank Heaters Water Thermostat AU (1000W) Digital Led Display & External Temperature Controller: This aquarium heater features a unique LED digital screen controlsainsmart XPERTMATIC Premium 200W Aquarium Heater for 15–26 Gal Tanks, 65–93°F Adjustable, Submersible Fish Tank Heater with Exter Premium Aquarium Heater 200W digital submersible fish tank heater designed for 15–26 Gal (50–100L) aquariums, suitable fLamptobe Lamptobe 100W Fish Tank Heater, Mini Submersible Digital Aquarium Heater with Thermometer, External Temperature Controll 【Compact and Efficient】 The 100W aquarium heater is a remarkable choice for small aquariums, offering both space-savingAquatopia Aquatopia Hermit Crab Heater, Maintains a stable temperature environment for your Hermit crabBESPORTBLE BESPORTBLE Aquarium Heater for Small Tanks Constant Temperature Fish Tank Heater Mini Aquarium water heater: the compact size of this heater makes it suitable for use in desktop fish tanks and aquariums ofGeneric Aquarium Heaters,Small Fish Turtle Tank Heater for Aquarium - Wear-Resistant Accessories Preset with Precise Temperature Auto Temperature Control: This mini fish tank heater provides consistent auto temperature management, catering to the neOase HeatUp 100 Aquarium Heater - Oase Re-calibration system enables readjustment of the temperature + / - 3 °CEheim Eheim Thermocontrol e200 Heater, Black, Wattage: 150W, Model Number: AEH3637090 Advantages of the EHEIM control heater thermocontrol-e Precise temperature adjustment from 68°F to 89°F (20 to 32°C) NoSZELAM Aquarium Heater 200/300/500W with External Temperature Controller, Submersible Fish Tank Heater with Large LED Digital D 【Safety Protection Design】 : U-picks thermostatic aquarium heater adopts dual sensors for better protection, when the waAquaOne Aqua One 100 Watt ThermoSafe Aquarium Quartz Glass Shatter Resistant Heater 28cm Repashy Calcium Plus All Sizeshygger hygger Submersible Aquarium Heater: Dual Quartz Glass Fish Tank Thermostat with Led Digital Display Controller - APS Aut Powerful and Efficient Heating: this 1000W aquarium heater boasts a robust heating capacity for rapid temperature adjusthygger hygger Aquarium Heater, 200W Submersible Fish Tank Heater with Temperature Dual Digital Display Betta Turtle Tank Heater 【Dual LED Digital Temperature Display】 Both the aquarium heater and controller feature this display, providing clear synAQQA AQQA Fish Tank Heater, 1200W Aquarium Heater with Intelligent External Controller, Dry Burning-Resistant & Overtemperatu Rapid Heating: The aquarium heater uses a chrome-nickel heating wire that raises the water to temperature quickly and saHydor Hydor 300W Theo Aquarium Heater, 39 cm Size Internal heater for aquariums and turtle tanksHydor Hydor External Heater Aquariums ETH 300 W Sump and External Filters, Safe and Precise, Tube Diameter 16 mm Innovative external heater for aquariums with high efficiency and durability. Technology with protective Ptc film that aHydor Hydor 25W Theo Aquarium Heater, 17 cm Size Internal heater for aquariums and turtle tanks