B0B5XJXL8W US
AquaMiracle Aquarium Heater 100W Fish Tank Heater for 10-20 Gal Tanks, LED Digital Display Thermostat Turtle Heater with Out-of-Water Auto Shut-Off, Overheat Protection & Memory Function 5 👍 Indi*** I have three that all work great none have broken, been like a year. heats slowly I will say, but once it’s the right temp it can keep the temperature consistent. So for the price it’s amazing B0BC6HLMY1 US
Orlushy 25W Small Submersible Aquarium Heater, Constant Temperature Betta Fish Tank Heater of 78℉for 1-6 Gallons Freshwater & 1 Boiled my fish alive Prettyi*** Defective. Everything was fine until one day the water was super hot and my fish were dead. B0BL81M8LX US
DaToo Aquarium Heater Adjustable 50W Submersible Fish Tank Heater with Electronic Chip Thermostat Suitable for Marine Saltwat 1 Don’t purchase Brittany*** Horrible the knob wouldn’t turn and it ended up getting so hot it killed my fish! Horrible product don’t buy B0BQNTD3VM US
Sicce 6W Jolly Preset Small Submersible Aquarium Heater, Constant Temperature, Betta Fish Tank Heater Set to 77℉ for 1-2 Gallons Freshwater & Saltwater Tanks 5 2 gal betta tank xzvc*** This keeps a 2gal betta tank at a perfect 78.5F. Had it for a couple weeks now no problems. B0CB8BYJFR US
hygger Aquarium Heater, 500W 800W 1000W Submersible Fish Tank Heater with LED Digital Display Ove... 5 When adding it to your fish tank, keep it in the center for best temperature control Uva*** The day I put this in my aquarium, it has not moved suction cups are holding tremendously easy to use easy to set up and honestly the appearance looks very cool inside the tank. I hose the temperatures very well maybe twice a day it has to adjust my sucker fish love to eat any buildup on it and I’m pretty sure they enjoy the warmness when it’s running also an amazing product B0CHB916PB US
DaToo Mini Aquarium Heater 50W Small Fish Tank Heater 50 Watt with Free Thermometer Sticker 1 NO!!! PLEASE DO NOT BUY!! Please please read! Amy*** NO!!! No no no no no! Do NOT buy this product!! It killed my entire aquarium overnight!! Never ever do I write a bad review but for the sake of fish lovers like me, I have to warn you to not buy this! I originally bought this is place of a heater I had to manually adjust which became annoying after awhile. I bought this in place of the other one that was far more expensive just to have a piece of mind that my tank would always be set at a certain temperature. I had a 24 gallon tank filled with all fish my three year old daughter had named because she picked them out. We had four speckled corydoras, 3 dumbo ear guppies, 3 delta tail guppies, and 3 Dalmatian mollies. They were all passed away by morning… after putting in this heater the night before. I have a temperature gage on the side of the tank which read 96.6 degrees. Unreliable, inaccurate, completely defective B0DCBGKT2C US
AQUASMITH Aquarium Heater,50w/100w/150w/200w/300w/500w Submersible Fish Tank Heater,External LED Controller, with Over-Temperature Protection and Automatic Power-Off When Leaving Water for. 5 Fish tank Howard *** Ty working amazing B0DFXZVTHG US
VCRAZE 10W Mini Aquarium Heater for up to 1 Gallon Tanks | Super Small 5V/2A USB Fish Tank Heater with Digital Thermostat, Dr 1 Terrible product Amazon C*** Piece of garbage DO NOT BUY it doesn’t keep heat and system to set heat is janky. Couldn’t even keep a 2.5 gallon slightly warm B0DMDWD6TV US
AQUANEAT Aquarium Heater, 200W Fish Tank Heater, Adjustable Submersible Water Thermostat with Digital Thermometer 5 Seems good Ally s*** Seems to be working so far. Temp is a little different I have it set to 74. Easy enough to install. So far worth the price and not to big. B0FBGFRS3K US
AquaMiracle 15W Small Aquarium Heater Fish Heater, Super Mini Fish Tank Heater Turtle Tank Heater for 1-3 Gal Tanks, with Dua 5 Works great in 5 gallon fluval D Ea*** Works great in my 5 gallon fluval spec. Thanks! B0FXXCHFD6 US
HiTauing Small Aquarium Heater 25W, Constant Temperature 78℉ Fish Tank Heater with Digital Thermo... 5 Utv lights Amazon C*** Great quality B0GFSBFSPD US
QZQ Aquarium Heater, 50W Adjustable Fish Tank Heater with Digital Display, External Temperature Controller, Submersible Turtle Tank Heater for 5-10 Gallon Tanks 1 Avoid this heater Krysta*** If I could give it 0 stars I would. I set the heater to 72, left my house and came back a couple hours later to my heater displaying 89. Leaving my fish and shrimp dead. STAY AWAY from this heater. B01NAI9UO1 US
Penn-Plax Cascade Mini Fish Tank Heater – Fully Submersible – Great for Freshwater and Saltwater Aquariums – 4” Length – 10 Watt 5 Works great a year later Thatg*** Bought it for my amano shrimp tank. Keeps between 76 and 78 degrees f. Bought a 2nd one for my other fish tank. Suction cups sucks though 100%. I just pinned the wire under the lid to hang it in the tank. 🤷♂️ B0795XLHLB US
XMHF Aquarium Pipe Suction Cups Clear White for Fish Tank Heater Electric Wire Air Line Water Pump Tube 10-Pcs 1 it is not adjustable Fait*** The rubber used is not malleable and this is a waste of money. B09H4JBC3H US
HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic 5 Solid heater Jo*** Heater feels solid and I really like the protective covering on the heater. It’s only been a couple weeks, but very easy to use and it works great! B0BC6HLMY1 US
Orlushy 25W Small Submersible Aquarium Heater, Constant Temperature Betta Fish Tank Heater of 78℉for 1-6 Gallons Freshwater & 5 Great item lan*** Great heater for my size tank 2.5g. I just have my little for my desk and this heater works great. Great for the price and the betta "Mort" loves it. The shrimp even started to move around a bit more. B0BL81M8LX US
DaToo Aquarium Heater Adjustable 50W Submersible Fish Tank Heater with Electronic Chip Thermostat Suitable for Marine Saltwat 1 No seguro Rafael *** Piso en riesgo el acuario perdió la regulación y subió la temperatura sin poder ser regulado B0DCBGKT2C US
AQUASMITH Aquarium Heater,50w/100w/150w/200w/300w/500w Submersible Fish Tank Heater,External LED Controller, with Over-Temperature Protection and Automatic Power-Off When Leaving Water for. 5 BUY THIS HEATER! Anthony*** This is the best aquarium heater I've ever owned. The number ONE thing is it is totally encapsulated. The controls are outside of the aquarium which keeps everything completely sealed underwater. Every other heater I've had has geeked me out with the moisture that gets INSIDE of the heater. I've never been shocked by one of them, but look water, electricity and humans are NOT a good mixture. It always made me uncomfortable. I do have not these worries with this unit. It looks attractive. It is accurate. What's not to like. B0GFSBFSPD US
QZQ Aquarium Heater, 50W Adjustable Fish Tank Heater with Digital Display, External Temperature Controller, Submersible Turtle Tank Heater for 5-10 Gallon Tanks 5 Works great! David *** Works great. Thermostat is easy to set and read. B01NAI9UO1 US
Penn-Plax Cascade Mini Fish Tank Heater – Fully Submersible – Great for Freshwater and Saltwater Aquariums – 4” Length – 10 Watt 1 Dead Betta! Not Accurate From My Experience ce Mrs.Tru*** Ok I do have a 1gallon tank.I put this in and had a thermometer gauge in also. Next morning my Betta Red fish was at the bottom dead. I look a the temp. gauge.It was at 83 degrees! TIm guessing 4-5 gallons. It may keep the 77 preset. Take your fish completely out 1st and let it sit over night to be sure of the temp, wish I did. My office miss my Valentine's /Birthday gift Lov-er P.S. Trueview❤️ B0795XLHLB US
XMHF Aquarium Pipe Suction Cups Clear White for Fish Tank Heater Electric Wire Air Line Water Pump Tube 10-Pcs 1 A terrible smell Nata*** A terrible smell. I didn't dare put it in the tank because I'm worried about the fish. B09H4JBC3H US
HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic 5 Surprisingly awesome heater. Jo*** Great heater! It had the temp up to 76 from 68 in under an hour on the 55 gallon. It was a bit bigger than I thought it would be but thats probably why it works so well. It has a little light on the cord to tell you when it's running, and it's really easy to set. I'm super happy with this, I'll be getting one for my next tank too! B0BC6HLMY1 US
Orlushy 25W Small Submersible Aquarium Heater, Constant Temperature Betta Fish Tank Heater of 78℉for 1-6 Gallons Freshwater & 1 Over Heats! Will kill your fish!! Jay*** DO NOT BUY! WILL KILL ALL YOUR FISH! OVER HEATS B0DCBGKT2C US
AQUASMITH Aquarium Heater,50w/100w/150w/200w/300w/500w Submersible Fish Tank Heater,External LED Controller, with Over-Temperature Protection and Automatic Power-Off When Leaving Water for. 5 Works good OldMa*** Nice heater B0GFSBFSPD US
QZQ Aquarium Heater, 50W Adjustable Fish Tank Heater with Digital Display, External Temperature Controller, Submersible Turtle Tank Heater for 5-10 Gallon Tanks 5 50W fish tank heater. Good for small fish tanks. Ki*** This is only a 50W water heater. Good for small fish tanks. Will take some time to heat up the water. The display shows two temperatures. One is the set temperature that you want to heat the water to and the other temperature is the current temperature reading. There are two suction cups in the back to attach it to your fish tank. It is pretty easy to use. Just plug it in and set the temperature. Just make sure the heating element is in the water. At $17, it's a cheap way to add a fish tank heater. B01NAI9UO1 US
Penn-Plax Cascade Mini Fish Tank Heater – Fully Submersible – Great for Freshwater and Saltwater Aquariums – 4” Length – 10 Watt 1 Set temp point inaccurate James R*** I purchased 8 of these and they all heat to a different temp. Some are Running over 90º. All are in the mid to upper 80š. B0795XLHLB US
XMHF Aquarium Pipe Suction Cups Clear White for Fish Tank Heater Electric Wire Air Line Water Pump Tube 10-Pcs 1 Way too big for aquarium thermometer Di*** This is not for regular aquarium thermometers. It is way too big, it does not hold thermometer. B09H4JBC3H US
HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic 5 Heater works as stated Maca*** The heater is great and works perfectly! It warmed Up my water to the temperature I set it at and my fish and coral love it. It is also safe it has a plastic guard around the heater which I think is awesome as well. B01NAI9UO1 US
Penn-Plax Cascade Mini Fish Tank Heater – Fully Submersible – Great for Freshwater and Saltwater Aquariums – 4” Length – 10 Watt 1 beware--it overheats! Anni*** I've had this mini heater for my 3 gallon tank for six months. In the last few months the temperature of the water has risen to over 90 degrees. My betta fish seems to be suffering, lethargic, and hiding and I attribute it to the heat in the water. Normally a betta needs a controlled temperature between 75-80 which is what this product claims to maintain. I've disconnected it and asked for a refund. I wouldn't recommend this product to anyone. B01NAI9UO1 US
Penn-Plax Cascade Mini Fish Tank Heater – Fully Submersible – Great for Freshwater and Saltwater Aquariums – 4” Length – 10 Watt 4 Perfect size to heat water to put into tank Amazon C*** It was just what I wanted while it worked. Have had to replace it already B01NAI9UO1 US
Penn-Plax Cascade Mini Fish Tank Heater – Fully Submersible – Great for Freshwater and Saltwater Aquariums – 4” Length – 10 Watt 5 Working well for a 3-gallon tank Gue*** Fish tank heaters got all sold out at our local pet stores this winter, so we got online and tried this one. It's been working great for our 3-gallon betta tank. It keeps the right temperature well even in the middle of the winter in the basement. B01NAI9UO1 US
Penn-Plax Cascade Mini Fish Tank Heater – Fully Submersible – Great for Freshwater and Saltwater Aquariums – 4” Length – 10 Watt 5 Holds temp in 5 gallon Davi*** Really good little heater. This unit does not overheat the water as some other have. holds the aquarium at about 77/78 degrees. B07BT5FT13 US
DaToo Aquarium Heater Fish Tank Heater Submersible 100 Watt, 1 Yr Warranty 1 Shorted out after a few weeks! Jennife*** Thankfully I was only using this to heat my replacement water bucket because it started tripping my circuit breaker and when I tried a different outlet it sparked in the water bucket! I will be attempting to get my money back. B07BT916K6 US
DaToo Aquarium Heater Fish Tank Heater Submersible 200 Watt, 1 Yr Warranty 4 Bien producto Jose O *** Buen producto para mi Acurario. B07CQ3W23L US
SunGrow Water Heater, 10W, Turtle Aquarum Tank, Cat & Dog Heated Bowl, Warm Water Encourage Drinking, Bird Fountain Deicer, Chicken & Horse Water Dispenser Warmer, Quail Waterer Storage Bucket 3 Small fish tank heater Sierra *** Works really well at keeping the water warm enough for the fish. B07KBXF5XD US
Kinbo Aquarium Heater 300 Watt Submersible Fish Tank Heater Adjustable Temperature with Diving Thermometer and Protective Case Suction Cup 5 It is a great product, great price Robin Ar*** I bought this heater for a new aquarium set up. 75 gallons. It has worked amazingly well. Temperature control is very accurate. And so far the suction seems to be perfect B07WFSZ13K US
MQ Submersible Aquarium Heater Auto Thermostat, 200W Fish Tank Heater with LCD Digital Aquarium T... 2 Stopped working 1-2 weeks after. Frank H*** I have about 7 fish tanks and when I put this in I set temp for about 80 and after it was done the water temp read 83-84. So Lowered it a click and was about 80 degrees. Maybe 1-2 weeks later I saw water was 70 degree's about. The red light never went back on and never worked again. I tried a few methods and nothing worked. I just got a new one from another company the other day. So overall not pleased here. Stopped working very fast. B07WMR1LTC US
MQ Submersible Aquarium Heater Auto Thermostat, 500W Fish Tank Heater with LCD Digital Aquarium T... 1 Went out after 2 months Melissa*** Do not recommend, went out after 2 months B08CTHRCGT US
500W Aquarium Heater Submersible 500 Watt Titanium Fish Tank Heater with External Temperature Controller for 60 Gallon to 95 Gallon Tank 1 Does not keep water at temp you set it Jenna Mc*** Ran this heater in a 75 gallon tank. Only realized 3 weeks later that it wasn’t keeping the tank water at 78 degrees as set. It was keeping it at like 74 degrees. I don’t know if it wasn’t working at all and that was room temp water or if the temp gauge is not accurate for setting. Out of the window for return so that sucks. B0917RY834 US
Submersible Aquarium Heater, 800W/1200W fish tank heater, double tube heating, rapid heating and energy saving, LED digital temperature controller, suitable for sea water and fresh water(1200W) 5 Very nice Donn*** I use these for my small screen porch pond. It works as intended and keeps my fish warm through the winter. B09C1BZGSB US
HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic 5 Easy to read, heats up fast and very accurate . Art Arm*** Like how easy it is to read. Well made. Heats up fast and fits in the tank very well. B09C1GH8PQ US
HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic 1 JUNK! Palme*** This is the second heater from this company to fail in less than a month. First heater for 29 gallon tank would not turn back on after I made a water change, within first 30 days of use. Now the heater I bought less than a month ago from this company for my 20 long has failed. Found it had somehow switched itself from Fahrenheit to Celsius and when I put back on Fahrenheit the temp reading said 90!! I then checked my tank water with my hand and found the water very very warm. So far my fish seem ok, and am bringing temp back down slowly with frozen bottled water. B09H2SF5XM US
YukiHalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 30... 1 Works well for short time Kevin *** I was very happy with this heater, it's simple, easy to use, I like the display, and it adequately maintained temperature of the tank. However after a little over three months in the tank, I find my tank is dropping temperature with error code E1 indicating it's out of the water and has shut off. The heating element is completely submerged at the bottom of the tank. I understand nothing lasts forever, but just a few months of use before it malfunctions is unacceptable. B09H4JBC3H US
HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic 5 Great Heater! Amazon C*** I love this heater, my old one was very old and this is so easy to use and accurate. No more up and down with the temperature. B09KTY1B3K US
DaToo Submersible 50W Aquarium Heater Adjustable Fish Tank Heater 50 Watt 1 CRAP Tina B*** Would not work at all for a week in the tank. I was shipped another one. I took the old one out of the water but still sitting in the tank and it started to melt it's plastic cover. The new one works when it wants, so I bought a different brand that works. Both of the non-working heaters have an indicator light. However you can't see it even if it did want to come on. Because the too loose of plastic sleeve covers it, and the heater will just twist around in there. I monitored all of this on a seperate digital aqua temp reader. I understand it was a cheaper item but I expected it to work. B09Z2WNV7X US
DaToo 50 Watt Aquarium Heater Submersible Adjustable Temperature Fish Tank Heater 50W 5 Wow. As good as any aquarium heater I have seen. J*** What a value for the money. Looks good, works well, and this is a super good value. I would grab another without hesitation. B0B6FMX5X1 US
HITOP Compact Submersible Aquarium Heater -300W Digital Heater for Fish Tank/Turtle Tank, for Saltwater and Fresh Water with Temperature Controller 5 Fish tank heater Amazon C*** This heater works great and I love the remote that is used to set the temperature. Great value for the money. B0BC6HLMY1 US
Orlushy 25W Small Submersible Aquarium Heater, Constant Temperature Betta Fish Tank Heater of 78℉for 1-6 Gallons Freshwater & 1 faulty , don’t buy Amairia*** they gassed this product in the reviews. After working for a day, i come home from work to my betta fish swimming in ice cold water. Faulty heater and a waste of money. B0BCP6GPCT US
Aquarium Heater 300W Upgraded Fish Tank Heater With Leaving Water Automatically Stop Heating And ... 1 I purchased a NEW heater A Googl*** Item arrived sloppily stuffed into the box, missing a suction cup. Clearly opened and used. B0BF3S1LWH US
hygger Aquarium Heater 300W/500W/800W/1000W, Submersible Fish Tank Heater with Digital LED Controller and Intelligent Leaving 2 Lasted 10 months Je*** When it worked it was great, but it only lasted 10 months. 
AquaMiracle Aquarium Heater 100W Fish Tank Heater for 10-20 Gal Tanks, LED Digital Display Thermostat Turtle Heater with Out-of-Water Auto Shut-Off, Overheat Protection & Memory Function
Orlushy 25W Small Submersible Aquarium Heater, Constant Temperature Betta Fish Tank Heater of 78℉for 1-6 Gallons Freshwater &
DaToo Aquarium Heater Adjustable 50W Submersible Fish Tank Heater with Electronic Chip Thermostat Suitable for Marine Saltwat
Sicce 6W Jolly Preset Small Submersible Aquarium Heater, Constant Temperature, Betta Fish Tank Heater Set to 77℉ for 1-2 Gallons Freshwater & Saltwater Tanks
hygger Aquarium Heater, 500W 800W 1000W Submersible Fish Tank Heater with LED Digital Display Ove...
DaToo Mini Aquarium Heater 50W Small Fish Tank Heater 50 Watt with Free Thermometer Sticker
AQUASMITH Aquarium Heater,50w/100w/150w/200w/300w/500w Submersible Fish Tank Heater,External LED Controller, with Over-Temperature Protection and Automatic Power-Off When Leaving Water for.
VCRAZE 10W Mini Aquarium Heater for up to 1 Gallon Tanks | Super Small 5V/2A USB Fish Tank Heater with Digital Thermostat, Dr
AQUANEAT Aquarium Heater, 200W Fish Tank Heater, Adjustable Submersible Water Thermostat with Digital Thermometer
AquaMiracle 15W Small Aquarium Heater Fish Heater, Super Mini Fish Tank Heater Turtle Tank Heater for 1-3 Gal Tanks, with Dua
HiTauing Small Aquarium Heater 25W, Constant Temperature 78℉ Fish Tank Heater with Digital Thermo...
QZQ Aquarium Heater, 50W Adjustable Fish Tank Heater with Digital Display, External Temperature Controller, Submersible Turtle Tank Heater for 5-10 Gallon Tanks
Penn-Plax Cascade Mini Fish Tank Heater – Fully Submersible – Great for Freshwater and Saltwater Aquariums – 4” Length – 10 Watt
XMHF Aquarium Pipe Suction Cups Clear White for Fish Tank Heater Electric Wire Air Line Water Pump Tube 10-Pcs
HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic
DaToo Aquarium Heater Fish Tank Heater Submersible 100 Watt, 1 Yr Warranty
DaToo Aquarium Heater Fish Tank Heater Submersible 200 Watt, 1 Yr Warranty
SunGrow Water Heater, 10W, Turtle Aquarum Tank, Cat & Dog Heated Bowl, Warm Water Encourage Drinking, Bird Fountain Deicer, Chicken & Horse Water Dispenser Warmer, Quail Waterer Storage Bucket
Kinbo Aquarium Heater 300 Watt Submersible Fish Tank Heater Adjustable Temperature with Diving Thermometer and Protective Case Suction Cup
MQ Submersible Aquarium Heater Auto Thermostat, 200W Fish Tank Heater with LCD Digital Aquarium T...
MQ Submersible Aquarium Heater Auto Thermostat, 500W Fish Tank Heater with LCD Digital Aquarium T...
500W Aquarium Heater Submersible 500 Watt Titanium Fish Tank Heater with External Temperature Controller for 60 Gallon to 95 Gallon Tank
Submersible Aquarium Heater, 800W/1200W fish tank heater, double tube heating, rapid heating and energy saving, LED digital temperature controller, suitable for sea water and fresh water(1200W)
HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic
HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic
YukiHalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 30...
DaToo Submersible 50W Aquarium Heater Adjustable Fish Tank Heater 50 Watt
DaToo 50 Watt Aquarium Heater Submersible Adjustable Temperature Fish Tank Heater 50W
HITOP Compact Submersible Aquarium Heater -300W Digital Heater for Fish Tank/Turtle Tank, for Saltwater and Fresh Water with Temperature Controller
Aquarium Heater 300W Upgraded Fish Tank Heater With Leaving Water Automatically Stop Heating And ...
hygger Aquarium Heater 300W/500W/800W/1000W, Submersible Fish Tank Heater with Digital LED Controller and Intelligent Leaving