A 125 gallon tank is not a child play; it requires an awful amount of attention and care. Ideally, 125 gallon tanks are kept by expert aquarists who have been maintaining fishes for many years. These tanks require a significant number of commitments towards them.
Aquariums are consistently a pleasant touch to a home or office. It is a mitigating and peaceful magnum opus, and a great deal of people are genuinely into this leisure activity and experience. A great deal of people is genuinely into this leisure activity and expertise. Bigger aquariums, for instance, that with a limit of 125 gallons will consistently be the catchy point of fascination on any room and with the mixture of your fishes and aqua scaping becomes, it soon becomes an art.
However, as I mentioned earlier, a bigger tank means bigger responsibilities, and it is crucial you choose the heater for 125 gallon very carefully. Hence, in this guide, I will be reviewing a few of the best heater for a 125 gallon along with a buying guide to help you make your decision easier. So, don’t just leave it before reading the whole thing.
7 Best Heater for 125 Gallon Tank
Unlike other smaller tanks, 125 gallon tanks cannot work with a single heater. For this size of fish tank, you will need two heaters of 300W each. So down below I will be reviewing 7 of the best 300W heaters for a 125 gallon tank.
1. Uniclife Aquarium heater
- Ideal for 50-80 gallons fish tanks, can be installed in both fresh and saltwater.
- Red rotatable knob on top for adjusting the temperatures between ranges of 68°F-93°F. Visible temperature displayed...
Dimension and weight
The uniclife aquarium heater has a dimension of 13.54 x 3.23 x 1.81 inches with a weight of 11.04 Ounces.
Description
The Uniclife aquarium heater is a 300W submersible heater for 125 gallon tank. This heater can be used for both freshwater and saltwater tanks, and the setup process is very easy. It comes with a red easy to see rotatable knob at the top to control the temperature in a range of 68–93 degrees Fahrenheit. The temperature is easy to see, and it allows easy maintenance.
This heater also comes with three suction cups for more robust mounting inside your tank, and you can place it in both vertically and horizontally. This heater is made up of thick 2 mm shatterproof quartz glass which ensures the longevity of your heater, and it is also rated with IP68 ratings hence making it completely waterproof.
Pros
- It comes with three suction cups for easy mounting.
- Comes with an indicator light to show when the heater is running.
- Can be used in both marine and freshwater tanks.
- This heater is made up 2mm thick shatterproof quartz glass.
- Is rated as IP68, so it is waterproof.
Cons
- The temperature accuracy can be a bit of the scale.
Final Words
The Uniclife aquarium heater is a perfect option for people who are looking for a good heater in the budget for 125 gallon tank. Just but two of these heaters and you will be good to go. This heater is waterproof as well as durable. The 2mm thick quartz glass makes this heater last very long without any cracks or shatter. The indicator light becomes red when the heater is running and will automatically turn off as your preset temperature is reached.
2. Orlushy Submersible aquarium heater
- 300W aquarium heater is suitable for 40 to 55 gallons aquariums,Length - 11 inch,voltage 110-120V, power cord is 6ft,...
- It shows an area to adjust the temperature. It's not exactly accurate but it turns easy and can be adjusted at small...
Dimension and weight
The Orlushy submersible aquarium heater has a dimension of 12.3 x 3.6 x 2.1 inches with a weight of 15.2 Ounces.
Description
The orlushy submersible heater is made of explosion–proof 2 mm thick quartz glass which makes it very strong and easily usable in both freshwater and saltwater tanks. It comes with a dial for precise control of temperature which can be done in a range of 68 to 89°F with 1 degree increments.
In this heater, you will find an area to adjust the temperature. Unlike other manufacturers, they don’t claim this to be very accurate, but it does give a somewhat close reading to the exact temperature, and you can easily change the temperature using the knob according to your needs. It will also turn off automatically when you have reached your required temperature.
Pros
- Can be placed both vertically and horizontally.
- It can be used in both marine and freshwater aquariums.
- The temperature can be controlled easily with 1 degree increments.
- This heater comes with a digital thermostat which is very sensitive.
- It comes with an extended 6 foot power cord.
Cons
- The weight is a bit on the heavier side.
Final Words
The Orlushy submersible heater is a powerful and easy to control heater for a 125 gallon tank. It might not be the most accurate heater out there, but it indeed works very well for the price point you will be paying for it. It comes with an extended 6 foot power cord which allows you to power it from a distant power source and it also features an auto shut off feature when the required temperature is reached.
3. Aqueon Adjustable Pro heater
- Adjustable heat setting 68 to 88°F, Electronic Thermostat accurate to +/- 1°
- Shatterproof and nearly indestructible
Dimension and weight
The Aqueon Adjustable Pro Aquarium Heater has a dimension of 1.5 x 1.5 x 15 inches with a weight of 12 Ounces.
Description
The Aqueon adjustable pro heater makes sure that your fishes stay happy and healthy by keeping the water temperature at an optimum level. Regardless of whether your fish tank is freshwater or saltwater, you can without much of a stretch guarantee the temperature of the water inside the 125 gallon tank is the correct one for your aquatic pets.
With a helpful and exact temperature dial, you can change the temperature with a flick of your wrist which can be controlled in a range between 68 to 88 degrees Fahrenheit with a precision of +/- 1 degree. In the interim, you can breathe a sigh of relief, realizing that the shatterproof construction will keep your fish free from any danger of broken parts of the heater. It also comes with an auto gravity shut–off feature to ensure maximum safety precautions.
Pros
- Has a precision of +/- 1 degree.
- Auto shut off feature when the heater overheats.
- Comes with a Led knob which glows red when heating.
- Stays fully submersible.
Cons
- It is hard to calibrate the heater.
Final Words
The Aqueon adjustable pro is an easy to use 300W heater for a 125 gallon tank with a wide range of temperature. The temperature can be adjusted with a very accurate precision of +/- 1 degree, constructed out of non–corrosive shell which is durable and provides even heat distribution. This heater also comes with automatic thermostat for precise temperature settings and progressed gravity shut–off feature. The temperature settings are flexible, LED power pointer lights up Red when the unit is effectively heating the water.
4. AquaTop Aquarium Glass Submersible Heater, 300–Watt
Dimension and weight
AquaTop Aquarium Glass Submersible Heater has a dimension of 14.5 x 1.5 x 1.5 inches with a weight of 14 Ounces.
Description
The Aquatop heater is made up of top–notch insulated glass which protects the heater from occasional scratches and makes it durable in long term usage. This is an analogue heater which makes it very easy to use with simply the turn of a handle to alter the temperature to your necessities, and it includes an exceptionally obvious temperature setting to make checking the temperature simple, with no mystery.
It also comes with suction cups for easy mounting inside the aquarium. This heater has a liquid crystal vertical thermometer which makes it very easy to read your aquarium temperature, and you can mount it easily outside your 125 gallon tank.
Pros
- Temperature can be adjusted easily with a simple knob.
- Liquid crystal thermometer makes it easy to read the temperature.
- It comes with suction cups for easy mounting.
- This heater is designed with double insulation glass for more durability.
Cons
- The glass is not as strong as quartz glass.
Final Words
If you are in search of an old school analogue heater, then the Aquatop aquarium heater is the one for you. It is effortless to use, and temperature can be controlled using a simple knob. This heater can be easily set up inside the tank using the provided suction cups. The temperature setting is easily visible, and it is very easy to set your desired temperature. The glass thermometer makes it very easier to read the temperature from outside of the aquarium.
5. UPETTOOLS Submersible Aquarium Heater – 500W
- 500W Submersible Aquarium Heater is Suitable for 60-120 Gallon.Aquarium Heater Made Of High Quality Quartz, Double Seal...
- Adjustable Temperature Fish Tank Heater, Use Intelligent Temperature Chip Control Circuit, With External Temperature...
Dimension and weight
UPETTOOLS Submersible Aquarium Heater has a dimension of 15 x 7.6 x 3 inches with a weight of 2.7 Pounds
Description
The UPETTOOLS submersible aquarium heater is made up of high quality quartz glass to ensure that your heater doesn’t break easily, it also contains a double seal. This advanced design makes sure that the heater operation is safe and the heater is waterproof as well as shatterproof.
This heater is designed with advanced intelligent temperature chip control circuit for accurate temperature control. The temperature can be controlled using the external controller in a range of 60–90 degrees Fahrenheit. However, you cannot place this heater vertically; you can only mount is horizontal. It also accompanies two suction cups for easy mounting. UPETTOOLS submersible heater can be used for both freshwater and saltwater and stays fully submersible inside your 125 gallon tank
Pros
- Automatic turn off when the heater Is taken out of water.
- The precision of +/- 2 degrees Fahrenheit.
- It is made out of high quality quartz glass.
- Designed with intelligent temperature chip control circuit.
Cons
- This heater Cannot be placed vertically.
Final Words
UPETTOOLS submersible aquarium heater is a very good choice for 125 gallon tank. As this heater produces 500w of power, you just need to combine another smaller 100W heater with it for your 125 gallon tank. The temperature control In this heater is very easy since it can be done using the external controller. It also has an auto turn–off feature which helps the heater to automatically shut off while running dry.
6. Fluval E Electronic heater – 300W
[amazon box=” B001VMSK0I” title=” Fluval E Electronic Heater“]
Dimension and weight
The Fluval E Electronic heater has a dimension of 1.8 x 3.3 x 18.2 inches with a weight of 1.05 Pounds.
Description
Fluval E Electronic aquarium heaters are presumably among the most developed aquarium heaters accessible in the market. This submersible heater is outfitted with computerized chip innovation that screens and shows the temperature of the water in the aquarium persistently.
This heater also comes with a thermal sensor, which tests the water temperature consistently for more prominent dependability and accuracy. The Fluval E heater is designed to corrosion–proof as well as shatterproof. This heater can deal with a temperature range between 68°F–93° F. The best component of the Fluval E electronic aquarium heater is the way that they have double temperature sensors that observe the temperature of the water in the aquarium continuously. The heater has a special colour coded feature that makes you aware of any temperature changes.
Pros
- It comes with dual temperature tensor, which provides accurate real time temperature of the water.
- LCD display shows temperature in both Fahrenheit and Celsius.
- Has an auto shut off feature when it overheats.
- The LCD display changes colour to warn you about sudden temperature changes.
Cons
- Is a bit expensive compared to other heaters.
Final Words
The Fluval E electronic heater is designed with the most advanced technology. It has an LCD display that changes colour when the temperature of the water Fluctuates y +/- 2 degrees Fahrenheit from the preset temperature to warn you. It also comes with dual temperature sensors for greater integrity and real time measurement of the water temperature. This heater has a “fast heat” innovation that guarantees that the water in the tank is heated at a very short time and the auto shut–off safety feature stops the heater when the temperature of the water gets too hot.
7. BOEESPAT 300W Aquarium Heater
Dimension and weight
The BOEESPAT 300W Aquarium Heater has a dimension 14.2 x 5.6 x 2.6 inches with a weight of 1.2 Pounds.
Description
BOEESPAT 300W heater is a highly rated choice of 125 gallon tank users. This heater is fully submersible and comes with Waterproofing IPX8, made out of premium quartz glass which is further double sealed by a black guard. To sum up, the construction is done in such a rigid way that this heater is shatterproof as well as explosion–proof.
It is very easy to control the temperature using the external controller, just press the set button to the set temperature, and it will start to work. The temperature can be adjusted in a range from 68–94 degrees Fahrenheit. The Led will show you the current water temperature, and there is also an indicator light which will turn red when the heater is working, and it will turn blue as your preset temperature is reached.
Pros
- It has an IPX8 waterproof grade.
- Designed to be explosion–proof.
- Auto shut off feature when the temperature foes above 96.8 degrees Fahrenheit.
- It has an external temperature controller for easy alteration of temperature.
Cons
- The indicator light is very bright, and you cannot hide it.
Final Words
The BOEESPAT 300W aquarium heater is a very good aquarium 125 gallon aquarium heater. This heater has IPX8 waterproofing grade; so it is very well secured. The external temperature controller makes it very easy to control the temperature without the need to take the heater out of the tank every time. There is also an auto shut off feature to protect the heater from overheating issue.
Buying guide for the best heater for 125 gallon tank
So far we have discussed the best seven heaters for 125 gallon tank. But before you decide which heater you are going to need for your 125 gallon tank, you need to know few things that will help you to make a fixed decision of choosing the correct heater for your tank.
- The wattage of heater for 125 gallon tank
As an overall rule, you will be required 3–5 watts for every gallon of water in the tank. It is encouraged to utilize two heaters, rather than a super–solid heater. You ought to guarantee that you’re not accepting a heater with extreme power. So, you need to be very careful while choosing the wattage of heater for your tank.
To ensure the maximum health and stress–free life of your fishes, you need to use two 300W heaters for your 125 gallon tank. You can also use a single 500W combined with a 100W heater if you want to. But, it is a must that you use two heaters for a 125 gallon tank since a single heater will not be sufficient enough to heat the water properly in 125 gallon tank.
- Placement of aquarium heater
It is important that you know where to place your aquarium heater for max efficiency, and you should clearly have this idea before buying a heater for yourself. There are many different sorts of aquarium heaters, yet we will discuss the most well–known sort – submersible heaters that work totally submerged.
The water momentum assists with spreading the heat from the heater to the rest of the water in the tank, so for the best results, the heater is ought to be put directly close to the filter or pump for maximum flow. Introduce a thermometer in a corner opposite from the heater to ensure that the heat is evenly arriving at the opposite side of the tank also.
- Range of temperature
125 gallon tank is a huge size and can house numerous species of fishes, so it is important that you go for a heater that comes with an adjustable temperature range. Avoid getting a heater which only works with one preset temperature and the temperature cannot be further adjusted.
Some heaters have a simple knob to control the temperature where others come with an external controller for temperature adjusting. Go for the type that you feel most comfortable to work with.
- Budget
Before you buy anything, the budget always is the main crucial factor. Heaters come at various prices; some are very expensive whereas some are very low prices. If you have a high budget, it is obvious that you will be getting more exclusive features compared to a low priced heater.
However, since here we are talking about heater which is related to the health and livelihood of your aquatic pets. Don’t go for a too cheap heater; they will get damaged very soon and cannot deliver the temperature range they promised to do. For easy decision check my list for the best heaters for 125 gallon tank; I have mentioned there 7 of the best heaters for 125 gallon tank, and all of them are priced from moderate to a bit expensive ones.
Conclusion
Nothing is additionally fulfilling that developing a flourishing home aquarium – the magnificence of nature directly in your own home. Keeping an aquarium is not an easy task; there are many factors that you need to keep track of like finding the best heater to maintain an optimum temperature in your 125 gallon tank. Aquarium heaters are intended to keep your aquarium at a steady temperature. These heaters come in a few unique structures, some with external temperature controllers, and some without and many other designs and models. Here to help you find the best heater and not to get confused, I have mentioned about 7 best heaters for 125 gallon tank. Do keep in mind that buying only one won’t be sufficient enough to heat the water in your tank. You need two heaters for your 125 gallon tank. So, read the buying guide properly and check the above list of the best heater for 125 gallon tank before selecting the right heater for your tank.
Hello there, I’m Pavel, and I’ve been deeply immersed in the captivating world of fishkeeping for over 12 years. My journey began with a single tank, and since then, my love for aquatic life has only grown stronger. My heart beats for bettas and goldfish, as I’ve spent countless hours understanding their unique behaviors and requirements.
But fishkeeping isn’t just a hobby for me – it’s a passion that has led me to explore the art of aquascaping. Through this creative outlet, I transform ordinary tanks into breathtaking underwater landscapes, merging the beauty of nature with the intricacies of aquarium care.