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Shop Premium Aquarium Pumps and Filters Online in Sri Lanka

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DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker
US Store
DaToo

DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer ...
4.4

5k+ bought

LKR 4867

25Watt Mini Aquarium Heater, Submersible Betta Heater
US Store
PULACO

25Watt Mini Aquarium Heater, Submersible Betta Heater
4.3

3k+ bought

LKR 5673

hygger Small Aquarium Betta Heater, Submersible Fish Tank Heater 10W/25W/50W/100W with LED Digital Display, Suitable for Marine Saltwater and Freshwater up to 5/10/16/26 Gallon
US Store
hygger

hygger Small Aquarium Betta Heater, Submersible Fish Tank Heater 10W/25W/50W/100W ...
4.5

2k+ bought

LKR 9296

hygger Mini Fish Tank Submersible Heater 50W for 5-10 Gallons Small Betta Aquarium Heater with Digital Display Controller Adjustable Temperature
US Store
hygger

hygger Mini Fish Tank Submersible Heater 50W for 5-10 Gallons Small Betta Aquarium ...
4.6

1k+ bought

LKR 9699

HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater
US Store
HiTauing

HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with ...
4.5

1k+ bought

LKR 17348

Orlushy Submersible Aquarium Heater, Adjustable Fish Tahk Heater with Free Thermometer Suitable for Marine Saltwater and Freshwater
US Store
Orlushy

Orlushy Submersible Aquarium Heater, Adjustable Fish Tahk Heater with Free ...
4.5

900+ bought

LKR 10504

13% OFF
HiTauing Aquarium Heater, Upgraded 300W/500W Fish Tank Heater with Intelligent Leaving Water Automatically Stop Heating and Advanced Temperature Control System, Suitable for Saltwater and Freshwater
US Store
HiTauing

HiTauing Aquarium Heater, Upgraded 300W/500W Fish Tank Heater with Intelligent ...
4.5

800+ bought

LKR 11909 13725

Aquarium Chiller Fan,Fish Tank Cooler with Temperature Control,Minimum Setting 59F,Auto Start/Stop,Refrigeration Effect 3-7F,3-Speed Modes,for Axolotl Seawater Freshwater Coral Grass Tank
US Store
AQUASMITH

Aquarium Chiller Fan,Fish Tank Cooler with Temperature Control,Minimum Setting ...

600+ bought

LKR 20166

Thumb-Sized 15W Super Mini Aquarium Heater with Digital Display Thermostat
US Store
VCRAZE

Thumb-Sized 15W Super Mini Aquarium Heater with Digital Display Thermostat
4.3

400+ bought

LKR 8893

Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt, 2-10 Gallon
US Store
Tetra

Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt, 2-10 Gallon
4.4

400+ bought

LKR 7798

50W Aquarium Heater Adjustable Temperature Submersible Fish Tank Heater Water Thermostat with Thermometer for Freshwater and Saltwater Tanks
US Store
Novique

50W Aquarium Heater Adjustable Temperature Submersible Fish Tank Heater Water ...
4.4

300+ bought

LKR 4984

PAIZOO Aquarium Chiller Fan, Ultra-Quiet Fish Tank Cooler with 3 Speed Mode
US Store
PAIZOO

PAIZOO Aquarium Chiller Fan, Ultra-Quiet Fish Tank Cooler with 3 Speed Mode
4.3

300+ bought

LKR 12114

13% OFF
hygger Aquarium Heater 300W/500W/800W/1000W, Submersible Fish Tank Heater
US Store
hygger

hygger Aquarium Heater 300W/500W/800W/1000W, Submersible Fish Tank Heater
4.2

300+ bought

LKR 24595 28218

NICREW 100W Aquarium Heater with Temp Controller for 10-20 Gallon Tanks
US Store
NICREW

NICREW 100W Aquarium Heater with Temp Controller for 10-20 Gallon Tanks
4.4

300+ bought

LKR 11309

7% OFF
SEAOURA Small Aquarium Heater, 100W Fish Turtle Tank Heater for 10-20 Gal
US Store
SEAOURA

SEAOURA Small Aquarium Heater, 100W Fish Turtle Tank Heater for 10-20 Gal
4

200+ bought

LKR 10101 10906

100W Submersible Fish Tank Heater for 10-20 Gallon with Auto Shut-Off When Leaving WaterAquarium Heater, Dry-Burn & Overheat Protection, Smart LED Display for Betta Freshwater Saltwater
US Store
HANLESHUKA

100W Submersible Fish Tank Heater for 10-20 Gallon with Auto Shut-Off When Leaving ...

200+ bought

LKR 12517

HiTauing Aquarium Heater 25W/50W/100W/200W/300W, Adjustable Knob Fish Tank Heater with Digital Thermometer, Submersible Betta/Turtle Tank Heater for Freshwater and Saltwater Tanks
US Store
HiTauing

HiTauing Aquarium Heater 25W/50W/100W/200W/300W, Adjustable Knob Fish Tank Heater ...
4

200+ bought

LKR 8893

DaToo 50 Watt Aquarium Heater Submersible Adjustable Temperature Fish Tank Heater 50W
US Store
DaToo

DaToo 50 Watt Aquarium Heater Submersible Adjustable Temperature Fish Tank Heater 50W
4.2

200+ bought

LKR 4787

TetraFauna Aquatic Reptile Heater 100 Watts, for Frogs, Newts and Turtles, Green
US Store
Tetra

TetraFauna Aquatic Reptile Heater 100 Watts, for Frogs, Newts and Turtles, Green
4.2

200+ bought

LKR 13515

Aquarium Heater 300W Submersible Water Thermostat Fish Tank Heater Adjustable Temperature with Digital Thermometer for 40-75 Gallon Tanks
US Store
Novique

Aquarium Heater 300W Submersible Water Thermostat Fish Tank Heater Adjustable ...
3.8

200+ bought

LKR 7283

AQUANEAT Aquarium Heater, 100W Fish Tank Heater, Adjustable Submersible Water Thermostat with Thermometer
US Store
AQUANEAT

AQUANEAT Aquarium Heater, 100W Fish Tank Heater, Adjustable Submersible Water ...
4.2

200+ bought

LKR 6434

AQUANEAT Aquarium Heater, 25W Small Betta Fish Tank Heater, Mini Preset Water Thermostat with a Thermometer
US Store
AQUANEAT

AQUANEAT Aquarium Heater, 25W Small Betta Fish Tank Heater, Mini Preset Water ...
4.3

200+ bought

LKR 4851

100W Aquarium Heater for 10-20 Gallon with Auto Shut-Off When Leaving WaterSubmersible Fish Tank Heater, Dry-Burn & Overheat Protection, Explosion-Proof, Freshwater Saltwater Turtle Tank
US Store
HANLESHUKA

100W Aquarium Heater for 10-20 Gallon with Auto Shut-Off When Leaving ...
4.4

200+ bought

LKR 12919

USB 10W Mini Submersible Aquarium Heater Adjustable Fish Tank Heater
US Store
auomii

USB 10W Mini Submersible Aquarium Heater Adjustable Fish Tank Heater
4.2

200+ bought

LKR 5673

HITOP Mini Submersible Aquarium Heater -50W Digital Heater for Fish Tank Turtle Tank, for Saltwater and Fresh Water with Temperature Controller
US Store
HITOP

HITOP Mini Submersible Aquarium Heater -50W Digital Heater for Fish Tank Turtle ...
4.4

200+ bought

LKR 8885

Aquarium Heater, 25W Adjustable Fish Tank Heater with Digital Display
US Store
QZQ

Aquarium Heater, 25W Adjustable Fish Tank Heater with Digital Display
3.5

100+ bought

LKR 8491

8% OFF
hygger Aquarium Chillers Fan, Quiet Fish Tank Cooling Fan Equipment with Adjustable Timer Speed Controller, Suitable for Freshwater Saltwater Tanks1-Fan Head
US Store
hygger

hygger Aquarium Chillers Fan, Quiet Fish Tank Cooling Fan Equipment with Adjustable ...
4.3

100+ bought

LKR 8531 9296

Aquarium Fan,Ultra-Quiet Fish Tank Cooler,More Powerful,Cooling Effect 3-7F with 3 Speed Modes Adjustable Applicable Aquariums with or Without Edges, for Axolotl Seawater Freshwater Coral Grass Tank
US Store
AQUASMITH

Aquarium Fan,Ultra-Quiet Fish Tank Cooler,More Powerful,Cooling Effect 3-7F with 3 ...
4.3

100+ bought

LKR 16140

HITOP 15W Finger-Sized Aquarium Heater, Mini Fish Tank Heater for 1-4Gallon
US Store
HITOP

HITOP 15W Finger-Sized Aquarium Heater, Mini Fish Tank Heater for 1-4Gallon
4.5

100+ bought

LKR 6872

9% OFF
hygger 15-25 Gallon Short Fish Tank Heater, 150W 200W 250W Adjustable Submersible Aquarium Heater with Digital Display Controller, Run Dry & Overheating Protection
US Store
hygger

hygger 15-25 Gallon Short Fish Tank Heater, 150W 200W 250W Adjustable Submersible ...
4.5

100+ bought

LKR 11067 12114

DaToo Small Aquarium Heater 50W Mini Fish Tank Heater 50 Watt Submersible with LED Temperature Display
US Store
DaToo

DaToo Small Aquarium Heater 50W Mini Fish Tank Heater 50 Watt Submersible with LED ...
4.4

100+ bought

LKR 6800

AquaMiracle Aquarium Heater 15W Fish Tank Heater for 1-3 Gallon Tanks
US Store
AquaMiracle

AquaMiracle Aquarium Heater 15W Fish Tank Heater for 1-3 Gallon Tanks
4.3

100+ bought

LKR 8088

10W 5V/2A USB Super Mini Betta Heater LED Digital for up to 1 Gal Tanks
US Store
VCRAZE

10W 5V/2A USB Super Mini Betta Heater LED Digital for up to 1 Gal Tanks
4

100+ bought

LKR 7686

HiTauing Small Aquarium Heater 25W, Constant Temperature 78F Fish Tank Heater with Digital Thermometer, Submersible Betta/Turtle Tank Heater for Freshwater and Saltwater Tanks
US Store
HiTauing

HiTauing Small Aquarium Heater 25W, Constant Temperature 78F Fish Tank Heater with ...
3

100+ bought

LKR 5673

Thumb-Sized 10W Super Mini Aquarium Betta Heater for 1-2 Gallon Small Tanks
US Store
FUMAK

Thumb-Sized 10W Super Mini Aquarium Betta Heater for 1-2 Gallon Small Tanks
4.2

100+ bought

LKR 8893

20% OFF
EHEIM Jager Aquarium Thermostat Heater 150W
US Store
Eheim

EHEIM Jager Aquarium Thermostat Heater 150W
4.4

100+ bought

LKR 16140 20162

EHEIM Jager Aquarium Thermostat Heater 100W Pack of 1
US Store
Eheim

EHEIM Jager Aquarium Thermostat Heater 100W Pack of 1
4.4

100+ bought

LKR 15335

25W Mini Aquarium Heater Submersible Constant Temperature Fish Tank Betta Heater Free Thermometer Sticker Suitable for 1-6 Gallons Saltwater and Freshwater Tanks
US Store
Novique

25W Mini Aquarium Heater Submersible Constant Temperature Fish Tank Betta Heater ...
4.2

100+ bought

LKR 4867

hygger ECO Precise 100W Aquarium Heater Submersible, for 10-20 Gallon Fish Tank, 0.5C Dual Probe Controller, Overheat & Dry-Run Protection for Freshwater & Saltwater
US Store
hygger

hygger ECO Precise 100W Aquarium Heater Submersible, for 10-20 Gallon Fish Tank, ...
4.5

100+ bought

LKR 11309

4% OFF
hygger Small Submersible Aquarium Heater 100W Mini Betta Fish Tank Heater with LED Display Adjustable Temperature for 10-20 Gallon Freshwater Saltwater Coral Reef Tanks
US Store
hygger

hygger Small Submersible Aquarium Heater 100W Mini Betta Fish Tank Heater with LED ...
4.2

100+ bought

LKR 10443 10906

DaToo Super Mini Aquarium Heater 6 Watts Small Fish Tank Flat Heater 6W with Free Thermometer Strip Submersible Slim Betta Heater for Up to 2 Gallon Desktop Aquariums
US Store
DaToo

DaToo Super Mini Aquarium Heater 6 Watts Small Fish Tank Flat Heater 6W with Free ...
3.9

100+ bought

LKR 5189

DaToo 300W Adjustable Knob Aquarium Heater Submersible Fish Tank Heater with Digital Thermometer for Saltwater and Freshwater Tanks
US Store
DaToo

DaToo 300W Adjustable Knob Aquarium Heater Submersible Fish Tank Heater with ...
4.3

100+ bought

LKR 6800

DaToo 500W Aquarium Heater Submersible 500Watt Fish Tank Heater Adjustable Thermostat with 2 Suction Cups and A Free Digital Thermometer for Marine Saltwater and Freshwater
US Store
DaToo

DaToo 500W Aquarium Heater Submersible 500Watt Fish Tank Heater Adjustable ...

100+ bought

LKR 8491

4% OFF
Aquarium Heater 300W Upgraded Fish Tank Heater With Leaving Water Automatically Stop Heating And Advanced Temperature Control System, Suitable For Saltwater And Freshwater 20 Gallons to 60 Gallons
US Store
AIWEK

Aquarium Heater 300W Upgraded Fish Tank Heater With Leaving Water Automatically ...
4.3

100+ bought

LKR 9260 9662

AQQA Aquarium Heater 300W, Submersible Fish Tank Heater for 40-70 Gallon
US Store
AQQA

AQQA Aquarium Heater 300W, Submersible Fish Tank Heater for 40-70 Gallon
4.9

100+ bought

LKR 14127

HITOP Aquarium PTC Heater with Controller 200W 300W 400W Digital Heater for Fish Tank and Turtle Tank 40-100Gallon, with Protective Cover
US Store
HITOP

HITOP Aquarium PTC Heater with Controller 200W 300W 400W Digital Heater for Fish ...
4.4

100+ bought

LKR 12074

Purchase Reliable Aquarium Heaters and Coolers Online from Ubuy Sri Lanka

Some aquariums are decorative. Others are ecosystems under stress the moment the room temperature drops or the sun hits the glass too long. Without thermal control, the environment shifts from stable to hostile in hours. In freshwater and marine tanks alike, temperature regulation doesn’t just improve comfort; it keeps species alive.

Whether you’re raising neon tetras in a planted tank or managing heat spikes in a reef setup, the aquarium heater and cooler you use determine the health, behaviour, and survival of everything inside. Ubuy Sri Lanka offers solutions built to stabilise thermal variance, not just react to it. Every product is designed for aquatic balance, not aesthetics, from digital controllers to high-wattage heaters and compact chillers.

Choose the Right Thermal Setup for Your Aquarium

The right equipment depends on tank size, species, climate, and layout. Below are the main types of heating and cooling systems used in real-world aquariums, each with a defined role in water stability and species health.

Full-Submersion Heaters for Consistent Tropical Heat

These go entirely underwater, either mounted vertically or horizontally. Most models, like the Fluval E-Series, feature an adjustable dial and digital thermometer. Submersibles are favoured for their even heat distribution and compatibility with freshwater and marine tanks.

Choose the wattage based on your volume: 25 W for 5–10 litres and 300 W for 100+ litres. They work well in conjunction with aquarium water treatments that depend on stable biological activity.

External In-Line Heaters for Clean, Minimal Interiors

Connected to the outflow of a canister filter, these heaters warm water before it re-enters the tank. They’re ideal for aquascaped tanks where visual clutter matters. Brands like Hydor and Finnex make models with precise calibration, often to 0.1°C. Because they’re outside the tank, they’re safe from substrate disturbance or aggressive fish.

External heaters maintain temperature in reef tanks using multiple aquarium lights without crowding the sump or display area.

Compact Preset Heaters for Small Tanks or Quarantine Use

For tanks under 10 gallons of betta bowls, shrimp tanks, and fry grow-outs, compact heaters with fixed temps (usually 25°C) do the job. Models from Aqueon and Tetra offer plug-and-play setups with auto shutoff. These pair well with fish medication & health supplies, where temperature stability is key to treatment.

Titanium Heaters with Controllers for High-Value Systems

Titanium-core heaters resist corrosion and breakage. They’re often used with external controllers that monitor temperature independently. Brands like Inkbird combine dual-sensor probes with alarms and mobile alerts. These are common in setups where failure means loss: marine tanks, discus systems, and breeding operations.

The controller can toggle heating and cooling systems, which are ideal for seasonal climates. When paired with a fish food auto-feeder, it reduces manual intervention.

Clip-On Coolers for Surface Heat Management

Evaporative fans clip onto the tank’s rim and blow across the surface to reduce temperature. They don’t cool like a chiller but work in smaller setups or open-top aquariums. These are useful in shallow tanks exposed to direct light or setups with high-wattage aquarium lights. The water loss from evaporation needs topping up with conditioned water to maintain parameters.

Compressor-Based Chillers for Marine and Reef Tanks

These machines extract heat from the water using refrigerant coils and are essential when ambient temperatures threaten coral health. Chillers like the JBJ Arctica can handle tanks from 100–500 litres, dropping temperatures by up to 10°C, depending on the model.

Often used with saltwater setups that include sensitive invertebrates or temperature-sensitive fish, medication & health supplies.

Heater Guards and Turtle Tank-Specific Models

Turtles bite. They also knock into things. Standard glass heaters don’t hold up well in turtle setups. Use models with integrated guards or opt for heaters explicitly made for amphibious tanks. These come with casing, higher wattage for shallow water, and compatibility with basking setups.

Brands like Eheim and Fluval offer models rated for 20–100 litres of partially filled water. Always paired with a strong thermometer, many users install a secondary aquarium heater controller to cut power if temperatures spike.

Dual-Mode Temperature Controllers for Precision Automation

A standalone controller links to your heater or chiller and monitors water independently. Some models, like the Inkbird ITC series, have dual relay outputs to control heating and cooling precisely. They’re ideal for setups using a heater in winter and a cooler in summer. These are also used in amphibious tanks or when dosing aquarium water treatments that require narrow temperature ranges.

Get the Best Deals on Aquarium Heaters and Coolers from Top Rated Brands

Below, we have further categorised top models from brands based on their key features, use cases, and user ratings for your convenience.

Brand

Model/Product Name

Key Features

Best Use Case

Notable Technical Detail

User Rating

Fluval

E300 Advanced Heater

Shatterproof, LCD, ±0.5°C control

Tropical tanks

Fully submersible

⭐⭐⭐⭐

Eheim

Jager TruTemp 200W

Adjustable, auto shutoff

Mid-size community tanks

German-made, recalibration

⭐⭐⭐⭐⭐

Hygger

Titanium Heater 500W

External controller, dual sensor

Saltwater & large tanks

Titanium, 100–300L coverage

⭐⭐⭐⭐

JBJ

Arctica Chiller DBM-250

Compressor cooling, 1/3 HP

Reef setups, hot climates

Drop of up to 10°C

⭐⭐⭐⭐

Inkbird

ITC-308 WiFi Controller

Dual relay, app alerts

Heater + cooler control

Works with 1200W devices

⭐⭐⭐⭐⭐

Aqueon

Preset Heater 50W

Non-adjustable, compact

Betta & shrimp tanks

Maintains 25°C

⭐⭐⭐⭐

Across the range available across Ubuy Sri Lanka, digital heater systems and controllers are becoming standard even in beginner tanks. What stands out: users consistently favour temperature precision over brand loyalty. That means whether you're dosing medicine or adjusting for heatwaves, your equipment, not your heater’s logo, makes the difference.

Expert buying guide for Aquarium Heaters & Chillers

When it comes to maintaining an aquarium, temperature regulation is crucial for the health and well-being of your aquatic life. Aquarium heaters and chillers play a vital role in creating a stable environment, replicating the natural habitat of fish and other aquatic creatures. With various products available in the market, understanding how to select the right heater or chiller for your tank can be overwhelming. Whether you are a novice fish keeper or an experienced aquarist, you want to ensure that your purchase meets the precise needs of your aquarium setup. Factors such as tank size, type of aquatic life, and energy efficiency should all be considered, along with trusted brands which can ensure reliability and performance. In this buying guide, we'll break down essential considerations, common pitfalls, and helpful tips to make your shopping experience for aquarium heaters and chillers more effective and satisfying.

How Ubuy enhances your shopping experience for Aquarium Heaters & Chillers

Ubuy enhances your shopping experience for aquarium heaters and chillers by providing a seamless platform that aggregates a wide range of products from reliable brands. You can easily compare features, read customer reviews, and access detailed product descriptions to make informed decisions. Ubuy also offers competitive prices and deals, ensuring you get the best value for your investment. With fast shipping options, your new aquarium equipment can arrive at your doorstep in no time, allowing you to maintain a healthy aquatic environment for your fish with ease.

Need of Aquarium Heaters & Chillers

  • Temperature control specific to the needs of different fish species.
  • Energy-efficient options to minimize electricity costs.
  • Durability and reliability of the equipment.
  • Ease of installation and use.
  • Compatibility with aquarium size and type.

Key Factors for Choosing Aquarium Heaters & Chillers

  • Choose the right heater or chiller based on your aquarium size.
  • Consider energy efficiency ratings to save on long-term costs.
  • Look for adjustable temperature settings for flexibility.
  • Check customer reviews for reliability and performance insights.
  • Opt for products with warranties for added peace of mind.

Common Mistakes to Avoid When Buying Aquarium Heaters & Chillers

  • Purchasing a unit that is too powerful or not powerful enough for the tank size.
  • Ignoring the specific temperature needs of different aquatic species.
  • Overlooking the importance of build quality and materials.
  • Not considering the operational noise level during usage.
  • Failing to check for compatibility with existing aquarium systems.

Frequently Asked Questions About Aquarium Pumps and Filters

  • Where Should I Place the Aquarium Heater?

    Mount it near the filter outlet or circulation pump. That placement spreads warm water quickly. Keep it submerged and away from gravel or decorations to prevent heat traps. Use vertical or horizontal positioning based on your tank layout.

  • Can I Use a Heater in a Turtle Tank?

    Yes, but only with a guard or protective casing. Turtles can crack exposed glass. Choose turtle-specific heaters or add guards over submersible models. Always ensure the wattage covers your shallow water volume.

  • How Do I Know if My Aquarium Heater is Working?

    Look for the indicator light—Cross-check with a separate thermometer, not just the one built into the heater. If the temp doesn’t stabilise within 24 hours, inspect the unit or use a digital controller for verification.

  • Are Battery-Operated Aquarium Heaters Effective?

    Not for long-term use. They’re emergency devices at best. Instead, use a UPS backup system or controller with fail-safe cutoffs. Battery heaters can’t reliably handle large volumes or high wattage.

  • Where Can I Buy an Aquarium Heater and Cooler Online in Sri Lanka?

    Ubuy Sri Lanka stocks heaters, chillers, and controller systems from Fluval, Eheim, Hygger, and more. You’ll also find [Fish Food], [Aquarium Water Treatments], and [Fish Medication & Health Supplies] to build a complete thermal and biological system.