EHEIM Jager Aquarium Thermostat Heater 75W

Once you get your temp set, this thing is awesome. I set the ring to 78 degrees but my thermometer was only reading 76 so I moved the ring to 79. No change. Moved it to 80 and nothing. Moved it to 81 and it started going past 81. I finally dialed it in and it has been rock steady ever since. Just make sure you check it closely for a few days with an accurate thermometer and don't rely on the temp ring.

The Glass is nice and thick and I have no problems submerging it.

I have had quite a lot of heaters for my various fishtanks but this is DEFINITELY worth the price. It has a great range of temperatures that you can choose from to heat water up to. It's completely submersible and the cable is protected all the way up until the wall socket, for those very long or deep tanks. A light tells you when it's on and shuts off when the water doesn't need to be heated. The heater itself is a long cylinder and has a holder with suction cups that are all removable so you can clean each piece. After almost one year, though, the suction cups are giving out and need to be replaced.

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No complaints here! It's a great heater for a great price! Simple design, once stuck to inside of tank with the provided suction cups it has not budged!

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I have a 29G tank but fill to 2/3, and I put it next to my filter. The water temperature never goes under the set temperature. It's accuracy amazed me.

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For a heater that is supposed to be top of line, I didn't expect to be fighting it for days like an old heater from the 70's. whether the indicator dial is calibrated or not, the heater should shut off at a lower temp when you dial it down two degrees. I cannot get my tank below 81and the dial is now down to 75. I calibrated it to two thermometers, one laser and one aquarium standard type. Heater still coming on at 80 and taking it up to 82. This is all very unfortunate because the workmanship is good, although not as good as I expected from a German manufacturer.

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