In my experience, I have found these to be unreliable, and grossly inaccurate with the exception of the Marina betta heater. Smart circuit controls, Cons When choosing a heater, we have to weigh out the features of each of our choices. Next up, you have the smallest aquarium heater currently available, At 3 inches long, this heater is impossibly small. Accurate to 0.5F, you can be confident that whatever temperature you set is what it will heat to. First, lets cover the two different types of heaters you can choose from. Once this temperature is reached, the heater automatically shuts off and wont turn on again until the temperature drops. No part of this website, KEEPINGFISH.COM, may be duplicated without permission, in whole or part, in any matter other than for personal & educational purposes. The list of tiny yet high-quality heaters. Seems it would work better. For example, we have a display screen, automatic shut-off features, or fish guards. Since then, theyve had NONE available since September for warranty replacement, and have gone cold with any replies! A thermostat is set to the desired temperature range and a sensor will monitor the water conditions continually. In fact, based on amazon reviews for the tetra preset, there are over 600 one star reviews, many of which blame the heater for failing. Members of my local fishclub have always found Cobalt to be responsive, this is the first I have heard of them being problematic. Constant temperature control It is for this reason that a heater is essential to your tiny tank, no matter how cramped it may be. After our reviews, we feel the Aqueon Mini Aquarium Heateris the best small aquarium heater. So lets be safe folks and turn off the heater before sticking your hand in your bettas aquarium. Many fishkeepers feel that these units are more efficient at maintaining temperatures evenly within the tank. Keep it close to sources of heat and away from cold sources. Most of their products, I would say, belong in the mid-range in terms of pricing. The Hydor Theo is an adjustable aquarium heater. With a high-density ceramic outer core and a shock-resistant borosilicate glass-encased heating element, you can rest assured of its durability. It would, but it also costs more and has the problem that if it gets stuck on it will cook your fish. The Cobalt Neotherm is the heater I currently use on most of my tanks. Id love for someone to make a 100% reliable heater, but lets face it it aint gonna happen. Or, depending on what you have in your tank, you can mount the heater horizontally. Some people have a preference for glass heaters and that is still the undisputed king after all these years. The margin of error is bigger with a smaller tank, so we want a good quality heater that is reliable. It entirely depends on the temperature outside your tank vs. Always-on heaters dont regulate the temperature. Your recently viewed items and featured recommendations, Select the department you want to search in, YukiHalu Small Submersible Aquarium Heater, Mini Fish Tank Heater 25W 50W 100W 200W with Built-in Thermometer, External Temperature Controller, LED Display, Used for 5/10/20/40 Gallons (25 Watts), YukiHalu Small Submersible Aquarium Heater, Mini Fish Tank Heater 25W 50W 100W 200W with Built-in Thermometer, External Temperature Controller, LED Display, Used for 5/10/20/40 Gallons (100 Watts), YukiHalu USB Powered Submersible Aquarium Heater, 10W/5V/2A Adapter, Mini Fish Tank Heater 10W with Built-in Thermometer, External Temperature Controller, LED Display, Used for 0.5-1 Gallon Tank. I bought the Hydor Theo 25w for my Fluval Spec III (2.6 gallons). Save my name, email, and website in this browser for the next time I comment. Japanese Fighting Fish is reader-supported. Betta Fish Popeye (Swollen Eyes): Treatment and Prevention, Swim Bladder Disease in Betta Fish: Symptoms, Causes & Treatment, 9 Different Aquarium Water Sources (One is dangerous! Over the years, Ive had my fair share of cheap heaters and I dont think theyre worth it. I am looking for a new heater for my 80 gallon tank . Best Betta Fish Heater: Safe & Reliable Heaters for Betta Tanks. What we typically look for in a heater for betta: Best Betta Fish Tank Heaters For 5-Gallon tanks: Best Betta fish tank heaters for 3 gallon tank, Best betta fish heaters for 10 gallon + tanks, Dropsy in Bettas: How to Diagnose, Treat and Prevent Dropsy for Betta Fish. However, if your tank is this size and you would like some options you should look towards theeight-watt Marina Betta Submersible Heater. Welcome to my guide to the best betta fish tank heaters. The heater is featured with a thermometer safety control which shuts it off when it becomes dry. Usually betta fish are in a 5-gallons tank, which requires less wattage. Ive used Aqueon pros on all my freshwater tanks for years without an issue but I decided to spend more for the Neotherm specifically because it said it had integrated overheat protection which apparently it did not. So instead of paying for a high-wattage heater, were going for a higher quality product. The entire system, including the temperature control chip, is entirely waterproof with an IPX8 rating. Im not familiar with it. It has this very slim and mat black finish that I think many betta fish owners will enjoy. But when it comes to precision heating, size and reliability, there is only one aquarium heater you should pick. Turns out, its impossible. Im back to using Aqueon Pro but I did buy an ink bird controller for the reef tank. We warn against products that are specifically branded as betta fish heaters due to their inferior quality. Required fields are marked *. ), 5 Best and Quietest Aquarium Air Pumps (60+ Tested!). Your 10W may be just enough to keep the temperature up. Presently, Im running a 100w Tetra Preset heater in my Evo tank and its dead on 77.5-78 accurate. So this is a heater that I have been using and the past few years theyve recently come out with a new 50-watt, Which I think is even better for a Betta Aquarium. Unless you live in a tropical climate and dont use air conditioning, then you probably dont need one. Fishbowls are a controversial way to house your fish, and we do not recommend them (especially for betta fish no matter the common myths you may have heard). The Neo-Therm is able to supply a temperature range from 66 to 96 degrees Fahrenheit. If youd like to read all of my ramblings, as I like to call them, then keep reading. If you have no other choice than to use such a container to keep your fish, placing something like the Aqueons Mini Aquarium Heaterunderneath the gravel may be an option. This section covers the smallest of the small aquarium heaters. Fluval Submersible Glass Aquarium Heater, eight-watt Marina Betta Submersible Heater, 5 Best Live Plants for Betta Fish Tanks (All Good Picks), 4 Best Aquarium Vacuum & Gravel Cleaners (for Any Tank), 5 Best Betta Fish Caves (& Hideouts) For Your Tank in 2022, Constructed with safe and durable material, Designed for aquariums that contain half-gallon up to two gallons of water, Requires resetting after a certain timeframe, Lab glass jacket to increase the heating surface, The Neo-Therm comes with a three-year warranty, A flat design that is one-third of an inch in thickness, Can maintain higher temperature ranges up to 96-degrees Fahrenheit, This heater comes at a higher price point than some units in the smaller range, Water temperature may be one or two degrees less with ten-gallon tanks or larger, Temperature ranges from 68 to 86 degrees Fahrenheit. After a long search for the best ones, Ive come up with some great options, and the Aqueon Mini Aquarium Heater is the one that made it on top of my list! For a 5-watt heater, youd be expecting low capacity, however, this heater maintains a steady temperature even in tanks that hold two gallons of water! At the time of writing this, the oldest one has been going strong for over 6 years. For the most space-efficient installation, I recommend wedging the heater in the corner of your tank like this. My issues are more of the lack of support from. Durability is very important because dont want to have to buy another one once the cheap one breaks. Its unlikely that an in-line heater should be required for such a small aquarium. EHEIM is just another really great brand thats really popular in the fishkeeping hobby. A bettas aquarium being usually smaller in size we dont want a cheap heater. Without the need for a thermostat, manufacturers have been able to create some impossibly slim and small aquarium heaters. Most tropical fish are comfortable at that temperature. To reduce the size, these heaters are stripped of virtually every feature. Especially since were dealing with electricity and water, its always nice to amp on security. All content provided on the website are intended, exclusively, for informational purposes. The length of the thermometer is about 24 centimeters has a very slim appearance. A one-touch control system allows you to make adjustments more easily than other heater designs. As you expect, the heater shuts down when the water exceeds the set temperature and switches back on when the temperature drops. Aqua one nano preheated heater for 10L tank, its been in the tank for 11 hours and still the light has not turned off. To answer your question, both would work. Are you looking for an in-line aquarium heater? A 20-watt heater, for example, is twice as powerful as a 10-watt one. These are also referred to as hanging heaters. Fish are unable to maintain their own body heat as they are poikilotherm animals. Its heating system attracts fish and may lead to some casualties. The Fluval E, despite having an innacurate temperature display is probably the next best pick, but I have had trouble locating it in recent months. The durable design offers longevity and safety in your tank. The modern design is very thin, which is a great feature when used with a smaller tank. What size of heater would you reccomend for my 5 1/2 gallon tank? Two small heaters on opposite sides of the tank (I happen to have a 10w not in use) at night until the weather warms? No part of this website, KEEPINGFISH.COM, may be duplicated without permission, in whole or part, in any matter other than for personal & educational purposes. Best Betta Fish Heater: Safe & Reliable Heaters for Betta Tanks. Your best option to use will be a submersible heater. Tough luck! Lets take a closer look at the best heater for small aquariums with reviews of the following: [FREE DOWNLOAD]: How To Avoid The Top 5 Mistakes New Betta Owners Make. Once you reach this size, you can use almost any heater you want. The controls are easy to use, and the heat supplied is distributed evenly. This nifty device shuts your heater off if your water becomes too hot and turns it back on once the water cools keeping your fish safe. However, I would recommend other products in this price range. So thats very convenient and helps you get a read of water temperature instantly. You can find my reviews here. The heater comes at a preset temperature of 78 F. You cannot change temperature settings. The temperature fluctuations experienced by a small tank require that any heater used is able to measure temperatures as accurately as possible. You didnt touch on that at all in your original comment. Due to this, a freshwater aquarium must be able to maintain temperature ranges between 71 and 86 degrees Fahrenheit on average (and even more specific temperature ranges for certain freshwater fish species). Top subscription boxes right to your door, 1996-2022, Amazon.com, Inc. or its affiliates. Those up to 5 gallons measurements dont take your specific needs into account. The Aqueon Pro USED to be great, when it was made in Italy, its now made in China and is a shadow of its former self. absolutely avoid the Neo-Therm heaters. 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