Marineland Precision Heater for Saltwater or Freshwater Aquariums

I liked it enough to buy a second one for my other tankEasy time clean and easy to setHaven't had any issues with it at all

Purchased this about 2 to 3 months ago. The heater would great in the beginning. Now I set the temperature to 80 and will reach 86. So it's pretty off in accuracy. The issue is Amazon will bot give me my refund all they can do is replace it with this same item which I no longer want any parts from Marineland. I have had a few issues with this manufacturer already. I've had a cracked 75 gallon tank, a canister filter for 75 gallon tank leak all over my living room just after 3 weeks, and now this heater. This items are not cheap to be buying and having issues and damaging parts of my home.

I love the style of this newer model, with temperature levels listed on the nozzle. The older model just included a “+” and “-“ sign to indicate warmer or cooler temps. I also love the place of the suction on this version; the previous one the suction could break off from the thermometer itself.

This looks like it has some nice features, but it does not last! I have a 35 gallon tank I've had for over 30 years. My original heater lasted all of those years before going out. This Marineland Precision Heater was suggested to me but it did not even last me one month! Unfortunately, I had discarded the packaging and warrantee information. I'm sure a person can always get a bad one, but I have since seen mostly poor review on pet supply websites for this particular heater. One site has only 19% 5 star and 67% 1 star rating for an overall 2 out of 5 stars. One review says it burnt out the second day, one lasted 2 weeks, one lasted one month, one caught on fire after 2 days. The majority of reviewers seem to have had the same issues I had with it working only a few weeks. I wasted my money on this for sure, at least I didn't lose any of my fish.

Update: I reached out to the manufacturer and told them about my issue. They are sending a replacement to me.I've had it for about a month. It worked well at first but now it acts like there is a short in it. The red light will flicker and sometimes go off completely. It hasn't been maintaining the temp. I always unplug during water changes and don't let the water level drop in between. As luck would have it, the return window just passed a week ago.

I got a really nice price so I purchased this when my Cobalt Heater stopped working after a year. It seems for my long 20 gallon I need 150 watt even though the Marineland Chart shows 75 watt for 20 gallons would work. This came preset at 78. I plopped it in, let it sit for 20 minutes, then plugged it in. When I checked my manual thermostat, it read exactly 78 degrees after 6 hours or so. I turned it down 1 degree to 77 because it is winter currently and did not want it running more often. The water looks clearer and maybe that brown algae that started appearing will go away. Only kind of drawback is it is so big and can't touch gravel. It looks like something out of the Borg. And the long side because of weight I guess tends to dip the suction cup down a bit, and I can't keep it perfectly straight. But I was having trouble heating my tank so something this powerful was needed. The temperature on the heater is somewhat hard to read. I think it shows 76 when it should show 77 but that's why I have a backup thermostat in the tank.

Like all aquarium heaters . You get good ones and bad ones. So far so good . Replacing a 3 year old one. Do have it hooked to a inkbird for more safety. Would buy again.

I had bought a returned Marineland Precision Submersible heater (50w) because it was half the price of a new one. However, like 3 weeks later the heater quit working. Not long after I contacted Marineland directly (by email). They got back to me about a day later. Now 6 days later I'm with a NEW Marineland Precision submersible heater (50 watt). FREE OF CHARGE and YES that include FREE SHIPPING TOO. AMAZING customer service!!!

Todo muy bien hasta el momento, me da la temperatura casi exacta midiéndolo con mi termómetro, los materiales son buenos y solo esperar que dure mucho tiempo. En teoría el fabricante te ofrece garantía de por vida sobre el producto.

Fonctionne très bien!

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Es un calentador para mi acuario y si me gusto .

Perfect