Aquariums make a beautiful addition to your home. Your entire family will enjoy gathering around it, watching the antics of your fish. It's a relaxing experience that can draw you closer together. An aquarium is also a great way to teach your children how to care for animals. They can help you feed the fish and clean the tank. But before you bring any fish home, you need to make sure your tank is prepared for them. Some fish require a little extra care, to ensure the water is the correct temperature. If your fish need warm water, you'll need to add an aquarium heater to your fish tank. Here are five of the best aquarium heaters you can buy, so your fish stay healthy and happy in your home. Tetra Submersible Aquarium Heater Green for GoWhen the indicator light on this aquarium heater turns green, the water is the correct temperature.Best OverallFind on Amazon You need a reliable heater for your aquarium to ensure your fish don’t suffer in water that is too cool or too hot. This aquarium heater from Tetra can give you some peace of mind when it comes to your fish tank’s temperature. How? Simple: it uses an electronic thermostat to automatically keep the temperature at 78 degrees Fahrenheit, which is the recommended temperature for most tropical fish. Because everything is automatic, this aquarium heater couldn’t be easier to use. You won’t have to make any manual adjustments. There are no manual adjustments required – you just set it in place, plug that sucker into the wall, and let it work its magic. The light turns green when the water is the correct temperature. If the light is red, it means the heater is working. Pros Simple to use, so you won’t have to deal with complicated settings or worry about your kids accidentally changing the temperature Can be installed horizontally or vertically, so you can pick what works best in your tank Cons You can’t adjust the temperature, so you’ll need to make sure all of your fish are comfortable with 78-degree water. Orlushy Submersible Aquarium Heater Stick It OnThis aquarium heater stays firmly in place thanks to its strong suction cups. Runner UpFind on Amazon Whether your aquarium houses freshwater or saltwater fish, this heater can keep the water at the perfect temperature. The temperature dial allows you to select a precise temperature between 68-89 degrees Fahrenheit, giving your fish water they can thrive in. This heater is made from 2mm thickened quartz glass that isn’t going to shatter in your tank. It’s very strong – in fact, it’s so strong that it’s deemed explosion-proof. In addition, it has an automatic shutoff to keep your water from overheating if there’s a problem. You’ll be able to use this aquarium heater for a long time to help keep your fish comfortable. Pros Several different sizes and wattage options available so that you can find one that works in just about any size aquarium Adjustable temperature gauge, giving you control over the water’s temperature Universal design, so you can use it in freshwater or saltwater tanks Good suction cups make it simple to attach and keep in place Cons Heater isn’t as accurate as some other brands, but it will keep your water within five degrees of your set temperature The cord is short (only six feet) so you may need an extension cord FREESEA Aquarium Heater Real Time DisplayIt's simple to check the conditions in your fish tank with this heater's easy-to-read display.Best LED DisplayFind on Amazon If you’re tired of fishing your heater out of the yucky tank to make adjustments, this aquarium heater’s the one for you. It has an external controller, making it easy as pie to use. More importantly, perhaps, you won’t smell like fish when you’re done changing the settings. In addition, this heater automatically keeps your tank at the right temperature. When your tank reaches the desired temperature, it’ll automatically go into sleep mode. If the water begins to cool, the heater will turn back on. You won’t have to constantly monitor the tank to ensure your fish are safe, nor will you have to worry that they’re getting too hot. Pros Simple to adjust the temperature settings without reaching into the tank Easy-to-read LCD display, so you can quickly see the temperature Compact size that fits well in small tanks Cons Display is only in Celsius, so you may have to do some conversions if you’re used to working with Fahrenheit Control box isn’t waterproof, so take care not to drop it into your tank VIVOSUN 50W-500W Submersible Fish Tank Heater Nearly IndestructibleThis durable aquarium heater's tube is made from explosion-proof titanium to make sure that, even if the apocalypse arrives, your fishy's water will be set to just the right temperature.Most Durable Find on Amazon Newsflash: you don’t want your heater to explode or shatter inside your fish tank. Explosions aren’t nice, and they can even be deadly: both for your fish and for you. Give yourself peace of mind with this titanium aquarium heater that has built to last, and, you know, not explode. It’s made with a non-corrosive tube that can withstand the heat without bursting. For additional safety, there are overheat and water shortage protections built-in. Explosion-proofing aside, this heater is also very versatile. You can use it in freshwater, saltwater, and marine aquariums. It can also be used safely in aquaculture and hydroponic systems. Once you get it set up, you can use the touch-button controller to change the temperature without reaching your hand into your tank. It’ll keep everything the perfect temperature for your fishy friends. Pros Really durable to keep you and your fish safe Slim profile, so it won’t take up a ton of room in your tank Cover to keep your fish away from the heater Double sensor probes for an accurate reading Cons Heats fairly slowly, so your tank will take time to get up to temperature Hygger 500W Aquarium Heater Fast and ReliableYou'll appreciate how quickly this aquarium heater can get your tank up to the right temperature.Fastest Heating Find on Amazon Your fish are counting on you to keep their water warm. You won’t let them down with this aquarium heater from Hygger. You can select between 300 and 500 watts, which will effectively heat tanks between 30-120 gallons. The 10.5-inch heater rod works quickly to achieve and maintain the perfect temperature. It’s strong enough to raise 3.5 gallons of water 3-degrees Fahrenheit in only three minutes. Impressive. Anyway, this aquarium heater is made from durable materials, including quartz glass. It’s covered with a plastic guard to keep your fish from getting too close to the heating element. When you’re getting this heater in place, you can put it on the sides or bottom of the aquarium. Just make sure it’s fully submerged. You’ll want to place the thermometer away from the heater for the most reliable readings. You can quickly use the push buttons to set the temperature, and then it’ll get started. Easy peasy. Pros Easy-to-read LCD display that shows you the real-time temperature in degrees Fahrenheit Fish guard to keep your fish away from the heater core so they stay safer Strong suction cups so you don’t have to worry about your heater falling off Cons These aren’t meant for tiny tanks, so if you have anything under 30 gallons, go with a different heater. There are several different cables to keep track of, so you’ll have to ensure you get them all connected properly. Frequently Asked Questions What size heater do I need for my aquarium? Your aquarium heater needs to be the right size for your tank; otherwise, it’ll make the water too hot or it’ll fail to properly heat the entire thing. Always know the size of your tank before you make this purchase. Heaters show the size tank they are recommended for, so use this information to help you buy the right one. Can I take the heater out easily? While most aquarium heaters are easy to remove, you need to be careful. Submersible heaters should never be taken out of the water until they’ve been unplugged and have had a chance to cool down. Otherwise, you can destroy them. Always read the owner’s manual carefully when it comes to handling your aquarium heater. That way you can ensure that you and your fish stay safe while using it. Related posts:Powered by SearchIQ The Best Dog House Heater Read more The Best Heated Pet Bowls Read more The Best Water Troughs for Pets Read more