Customer Reviews
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  1. 300/500 titanium
    Performance
    100%
    We have three of these titanium heaters 2-300&1/500 models
    Heaters are very well made and heat up quickly
    Comes with heat protection shield that helps prevent burns to our precious fishes
    They are well worth buying to connect up with thermostat controller of your choice and keep our tanks temp right on target settings
    Highly recommended these for someone that has a run away heater problem
    This will help prevent that because you have control of your heaters
    Also connect to controller that has a setting for alarm high/low temperature

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  2. stray voltage
    Performance
    40%
    make sure you check for stray voltage. lasted 7 months

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  3. great heaters
    Performance
    100%
    have a 300w running for 3yrs now without a problem. just ordered a 800w for my new build 300 gallon reef.

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  4. 800w titanium heater
    Performance
    40%
    Only lasted 6 months. Finnex only offers a 6 month warranty. I had to box it up and pay shipping to them. They will look at it and decide if it can be fixed or replaced. Never buy Finnex again.

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  5. Stray current!
    Performance
    20%
    Both of my heaters ( 3 & 8 months old) are emitting stray current. I was aware of that for 8 months. I’ve lost few corals with no reason.
    Be Aware!

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  6. Lasted 1-1/2 years
    Performance
    60%
    Did a great job paired with my Apex and lasted 1-1/2 years ....never cleaned it.
    When I did pull it out today, I did see quite a bit of calcium on it.
    Maybe should have cleaned it every 6 months as the calcium build up will always cause them to overheat, causing shorter life span.

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  7. 50 watts short of advertised
    Performance
    60%
    Going through an Ink Bird Controller and an Apex as the emergency cut off if temps get too high. That being said its constantly 450 watts and does the job with usually an hour run time and an hour down time on a 109 gallon system. This set up was about 10 dollars cheaper than the Finnex with its own temperature controller. I might look at another brand just depends on how long this one lasts due to not getting all the bang for the buck I paid for and expected, so keep that in mind.

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  8. Pair it with a good controller and never worry again
    Performance
    100%
    I am a firm believer that fewer things to go wrong is better. The small size of this heater is also great because it fits almost anywhere. it's half the size of other brands of the same wattage.

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  9. Good Heater for Use w/ Controller
    Performance
    100%
    I like the titanium vs glass so I don't worry as much about cracking. I have two 300w set up for my 90 gal DT in the sump. The first/primary is hooked up directly to my Apex. The second/backup is set up through an Ink Bird controller then to Apex on a separate EB832 Power Strip. The first is four years old and still going; it keeps the water temp between 77.5 and 78.0 degrees with no problem. The second heater is less than a year old and has had little use as a back up. It's set to a lower temperature through the Inkbird controller. Apex Fusion is set to alert me if te backup turns on so I know the primary is failing or has failed.

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  10. BE CAREFUL WHEN DOING WATER CHANGES!!!
    Performance
    80%
    Just about NUKED my tank today!! I had always done my water changes the same, today was my first with this heater. When the heater was exposed to the air it basically cooked the plastic of it and nearly started a fire!!!! I admit that this was a user error on my part and Finnex doesn't cover this kind of damage. This happened within a 5 minute period so I'm only making this review as a warning. My Apex kept the unit on because the water temp was still below 78 degrees during the water change.

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