Features:

  • Zacro AH429 Submersible Aquarium Heater, Adjust the Temperature Manually with Chip 2478, 50W
  • Visible temperature setting, Temperature adjustable of between 65F - 93F
  • Tank capacity: 2 to 16 Gallons, Voltage/freq: 110-120volt/60hertz
  • Waterproof and Double sealed material--Plastic and black protective container for Scald-preventing and anti punching
  • Provided the best warm area to your fish in the cold winter.
Great for 10gal tank

I used this heater in a 10g tropical tank with very low flow and I haven’t had any issues with it. Heats the water to my desired temperature quickly.

Great little heater

This works great for our family's painted turtle companion. I came back and bought an additional item.

A must have for ALL aquariums

I highly recommend this seller and product. Excellent craftsmanship! Accurate description, easy to use and very reliable.

The best heater money could buy

My opinion I think this is was the one of the best heaters I've ever bought it hasn't broke temperature is always right and really easy to adjustable I would love to buy another one.

AWESOME VALUE

For the money this thing is awesome. I have it set at 78 and my temp is consistently 78-79. Love!! Have been using it for a few weeks now in myQT.

Temp fluctuation for 3 gallon Betta tank *** Edited!

My first couple of days with this heater were not the best. I am not sure exactly what happened, but the temp was fluctuating - after messing with it and unplugging it for a bit, I gave it another shot. And I am happy to report that it has been working perfectly for a while now! It keeps my 3 gallon at a perfect 80 very consistently, and I am very pleased. My only qualm is that the heater is that the settings are not exact. Currently, it is set at 76 (I think - it is a little unclear what the dial is actually set to), yet running the tank at 80 degrees. However, with some fiddling and some patience, this heater has done exactly what it claimed to do. My betta is happy and the black color matched my black sand. Overall, very satisfied - and you can be to if you can get past the quirks! Previous Review: I got this heater for my nano 3-gallon Betta tank. I am currently cycling my tank, so no fish are currently living in it.. I am also waiting on my thermometer, so I can’t give exact temp measurements. However, I came in today to check the progress of the tank and the water was cold to the touch (whereas the day before, it was warm to the touch). After fiddling with it and raising the temp, it finally feels warm again (currently on 82 degrees - which is on the warm side for a Betta). I was a little disappointed at the extreme fluctuation, and hope that I don’t see any more problems (I am aware that this heater works in cycles, but this type of fluctuation is not suitable for fish). I will monitor for the next week, and perhaps update this review if I start seeing consistent heating. Perhaps this heater doesn’t actually work for a 3 gallon, despite the description saying so. We will see.

It do it job.

It heart up my fish tank nicely with no issue.

Excellent heater at a low cost, survived a blizzard.

I have several aquariums and all have heaters in them. I have recently set up a 135 gallon stock tank outside that is growing Neocardina shrimps. I purchased three of these heaters to keep the shrimps alive through the winter. I live in Indiana, so while its not the coldest place in the world, we had a chilly winter, we even had a polar vortex pass through. There were several days in the last few months where we recieved 4 or more inches of snow. I had set the heaters at 72, and they kept the tank at that temp through a freaking blizzard! I mean what more can a guy say to point out how good they are ? I also have these heaters in my indoor tanks now as I figured if it passed the "Blizzard Test" it will pass the indoor test. And it does. I whole heatedly recommend this heater, its cheap and its a workhorse. A final note: I have a bit of a competetion with my wife as to who gets the most helpful reviews. I am not too worried, she reviews lotions and oils, still, if this review helped you make a decision, I would super appreciate if you mark it as "helpful" Thanks

Love the thermostat that allows you to set the temperature.

Great heater. Put it in my Fluval 2.6 Spec aquarium. You simply set it , and forget it. Maintains the set temperature great . Love the temperature control that allows you to make it a bit higher if it’s colder outside and lower it if it’s hot out. Best heater ever!!!

It's keeps working every day.

Nice reliable heater for my fish (betta). It dose take up a lot of his tank (3gallons) so I probably take it out during the summer.

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