Hagen Marina Betta Submersible Heater for Aquarium

Good heater for a small Betta bowl. I had 0.5 G bowl and it works really well for me. Would recommend it to anybody.

My poor little Betta was freezing in his 1/2 gallon glass bowl. I upgraded to a 1 Gal square tank and added this heater. His water is now just a little cooler than luke warm. He is happy, spunky, and even made his bubble nest the day after I placed him in his new and warmer enviornment. It only took about 4 hours to get his water to a consistant temp and it has remained that way.

UPDATE: 01/28/13

Well, this heater keeps the water at a nice temp for ME but not my Betta. I only have a 1.5 gal environment for my fish so this heater began to make my fish sick and he almost died. I read on a site that a heater should not be used unless my fish is in a 5 gal or larger tank...oops!

I took the heater out just in time to save my beautiful fish. I'm keeping the heater because I will eventually get a larger tank for him.

This product did do its job, so it's nice.

Buy Hagen Marina Betta Submersible Heater for Aquarium Now

We ordered our first one of these heaters for the betta tank in our kitchen since it seemed to get pretty cold during the winter. It kept the water at a nice high-70 degrees in a 1.5 gallon tank. The betta went from brooding at the bottom to swooshing around the tank, chasing after us as we walked by. He was obviously much happier, so we bought a second heater for the betta in our son's room. Now 'Decepticon' is also much more active as well. We feel bad that the cool water was obviously having a bad effect on the fishes' metabolism, but now that they are warm they will have longer, happier lives.

Read Best Reviews of Hagen Marina Betta Submersible Heater for Aquarium Here

So far so good.

I have this setup in a nano tank where it gets cold and because the heater stays constant it makes the water just right.

Want Hagen Marina Betta Submersible Heater for Aquarium Discount?

My betta's 2 gallon tank was SO cold before I got this!! He was lethargic, swimming really slowly, clamped fins, not as excited to eat, and pooing less. This little heater probably saved his life!! It keeps the temperature in a safe range, usually about 74 degrees. My little buddy is now energetic, with a voracious appetite, blowing bubble nests all day.

It's safe to leave on all day, doesn't over-heat the tank or anything. Sometimes he just sits right on top of it (which he is doing right now, ha!) I'm very happy I chose Marina Betta over any other heater.

Save 37% Off