Marina Betta Submersible Aquarium Heater, slide 1 of 1

Marina Betta Submersible Aquarium Heater

  • List Price:

    $14.19

  • Price:

    $9.74 FREE 1-3 dayShipping over $49

  • You Save:

    $4.45 (31%)

In stock
cw-icon-heart Created with Sketch. Add to Favorites
Description

Keep your betta happy, healthy and swimming in comfort with the Marina Betta Submersible Aquarium Heater. This 8-watt, submersible heater helps create the ideal water conditions for your betta to thrive in bowls and tanks up to 1.5 gallons. It’s designed to automatically reach and maintain a set temperature, which means you don’t need to make any manual adjustments. The exterior of the heater is made of durable polymer, so it’s more resilient than traditional glass sleeve heaters, and the red indicator light illuminates to let you know the heater is working. For your convenience, the included suction cup allows you to easily install it inside your aquarium.

Key Benefits
  • 8-watt, submersible heater helps create the ideal water conditions in bowls or tanks up to 1.5 gallons.
  • Designed to automatically reach and maintain a set temperature–no manual adjustments needed.
  • It’s made of durable polymer, so it’s more resilient than traditional glass sleeve heaters.
  • Red indicator light illuminates to let you know the heater is working.
  • The included suction cup allows you to easily install it inside your aquarium.

See all items by Marina

  • Item Number
    124906
  • Dimensions
    7.1 x 5.3 x 1.7 inches
  • Weight
    6.24 ounces
  • Aquarium Type
    Freshwater
  • Brand
    Hagen
  • Fish Type
    Betta
Warranty

1-Year Limited Warranty.

Rating: 4.1 of 5 stars 46 Reviews 46 Reviews 4.2 out of 5 Stars

85% Recommend

85% of reviewersrecommend this product

Rating: 4.1 of 5 stars 4.2 / 5

You've Already Reviewed This Item

46 Reviews

Showing 1-10 of 46 Reviews

  • 3 out of 5 stars

    Does it's job, but requires attention.. (no thermostat inside)

    By on

    I bought this particular heater with the expectation that it would have regulated itself to a temperature. I thought I had read that it would take a 1 gallon aquarium to roughly 78*F, but I must have misread that or just imagined that I saw it! It's funny that at this price point which is of course on the low-end, there doesn't seem to be a manufacturer who incorporates a thermostat function built into the heater and just sell it at whatever higher price would be necessary because people would buy it. Instead, apparently in addition to this heater you need to buy a controller that will keep an eye on the temperature and just turn this on when it falls below that threshold. For a simple betta I bought this particular heater with the expectation that it would have regulated itself to a temperature. I thought I had read that it would take a 1 gallon aquarium to roughly 78*F, but I must have misread that or just imagined that I saw it! It's funny that at this price point which is of course on the low-end, there doesn't seem to be a manufacturer who incorporates a thermostat function built into the heater and just sell it at whatever higher price would be necessary because people would buy it. Instead, apparently in addition to this heater you need to buy a controller that will keep an eye on the temperature and just turn this on when it falls below that threshold. For a simple betta tank it is annoying to have that much hardware, so I am personally keeping an eye on the tank temperature and for the winter will run this heater when the ambient in room is ~68*F, and in the summer/warmer days will just unplug the heater when the room gets into the mid 70s. … more

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Great for small aquariums.

    By on

    I have a 2 gal. aquarium for my beta that has live plants. This heater is excellent. Other heaters were hard to regulate and kept spiking temp. This maintains the perfect temp consistently. Love it and so does my fish.

    You liked it! Something went wrong. Please try again later. Report
  • 4 out of 5 stars

    Betta Heaters

    By on

    Bought these on a whim and very pleased with them. I have temporary small tanks set up for quarantine of a few new betta and they maintain the temperature during the winter very well. Both tanks have thermometers to keep a check on temp. The only negative thing about these is that there is no set temp on them. Thou there is a red light to know that it is on.

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Perfect Heater for a Betta

    By on

    Works like a charm for my 2-gallon. It keeps the temperature of the water between 78 and 80 degrees.

    You liked it! Something went wrong. Please try again later. Report
  • 1 out of 5 stars

    doesn’t work

    By on

    I put this heater in my betta’s .5 gallon tank (it was at 78°). I woke up the next morning and the temperature was at 60°.

    You liked it! Something went wrong. Please try again later. Report
  • 4 out of 5 stars

    Works well now

    By on

    For the first week, this seemed to be inconsistent, but now I have been using it for over a month and haven’t had more problems with it. Works well for my small tank.

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Excellent for my small aquarium

    By on

    I use this heater in my small aquarium and it keeps the water a steady temperature.

    You liked it! Something went wrong. Please try again later. Report
  • 3 out of 5 stars

    Heats well but does not regulate temperature

    By on

    Our beta likes this heater and often swims around it repeatedly in his tank, which is just a bit larger than a gallon. It does not regulate temperature as advertised, however. We have come home to temps as high as 89 degrees and must plug and unplug this heater multiple times a day to regulate temperature. There must be a better way!

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Would Recommend!

    By on

    Bought 3, and my guppies and betas all seem to be satisfied, heats up pretty fast too

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Nice and Cozy

    By on

    I got a betta for my office. Being its in an older building and they don't keep the temp consistent. I could tell his water was getting colder than it should be. so I opted for an heater. I plugged it in and pop it in his tank and he loves it. He is always making his bubble nests and swimming around and being very social. Mr Blue is very happy fishy now.

    You liked it! Something went wrong. Please try again later. Report